Revert "[vm/ffi] Introduce Struct.create and Union.create"

This reverts commit c2e15cf.

Reason for revert: #54754
Version skew somewhere in the analyzer/dartdoc/flutter combination.
We need to land the fix inside ffi_verifier.dart first, and then
reland the API docs that trigger the code path in the analyzer
that throws the exception.

Original change's description:
> [vm/ffi] Introduce `Struct.create` and `Union.create`
>
> Structs and unions can now be created from an existing typed data
> with the new `create` methods.
>
> The typed data argument to these `create` methods is optional. If
> the typed data argument is omitted, a new typed data of the right
> size will be allocated.
>
> Compound field reads and writes are unchecked. (These are
> TypedDataBase loads and stores, rather than TypedData loads and stores.
> And Pointers have no byte length.) Therefore the `create` method taking
> existing TypedData objects check whether the length in bytes it at
> least the size of the compound.
>
> TEST=pkg/analyzer/test/src/diagnostics/creation_of_struct_or_union_test.dart
> TEST=pkg/vm/testcases/transformations/ffi/struct_typed_data.dart
> TEST=tests/ffi/structs_typed_data_test.dart
> TEST=tests/ffi/vmspecific_static_checks_test.dart
>
> Closes: #45697
> Closes: #53418
>
> Change-Id: If12c56106c7ca56611bccfacbc1c680c2d4ce407
> CoreLibraryReviewExempt: FFI is a VM and WASM only feature.
> Cq-Include-Trybots: luci.dart.try:vm-aot-android-release-arm64c-try,vm-aot-android-release-arm_x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-debug-x64c-try,vm-aot-mac-release-arm64-try,vm-aot-mac-release-x64-try,vm-aot-obfuscate-linux-release-x64-try,vm-aot-optimization-level-linux-release-x64-try,vm-aot-win-debug-arm64-try,vm-aot-win-debug-x64c-try,vm-aot-win-release-x64-try,vm-appjit-linux-debug-x64-try,vm-asan-linux-release-x64-try,vm-checked-mac-release-arm64-try,vm-eager-optimization-linux-release-ia32-try,vm-eager-optimization-linux-release-x64-try,vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64c-try,vm-ffi-qemu-linux-release-arm-try,vm-ffi-qemu-linux-release-riscv64-try,vm-fuchsia-release-x64-try,vm-kernel-linux-debug-x64-try,vm-kernel-precomp-linux-release-x64-try,vm-linux-debug-ia32-try,vm-linux-debug-x64-try,vm-linux-debug-x64c-try,vm-mac-debug-arm64-try,vm-mac-debug-x64-try,vm-msan-linux-release-x64-try,vm-reload-linux-debug-x64-try,vm-reload-rollback-linux-debug-x64-try,vm-ubsan-linux-release-x64-try,vm-win-debug-arm64-try,vm-win-debug-x64-try,vm-win-debug-x64c-try,vm-win-release-ia32-try
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/342763
> Commit-Queue: Daco Harkes <[email protected]>
> Reviewed-by: Johnni Winther <[email protected]>
> Reviewed-by: Lasse Nielsen <[email protected]>
> Reviewed-by: Martin Kustermann <[email protected]>

Change-Id: I285dc39946b5659219b37a1d8f10de479133957e
Cq-Include-Trybots: luci.dart.try:vm-aot-android-release-arm64c-try,vm-aot-android-release-arm_x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-debug-x64c-try,vm-aot-mac-release-arm64-try,vm-aot-mac-release-x64-try,vm-aot-obfuscate-linux-release-x64-try,vm-aot-optimization-level-linux-release-x64-try,vm-aot-win-debug-arm64-try,vm-aot-win-debug-x64c-try,vm-aot-win-release-x64-try,vm-appjit-linux-debug-x64-try,vm-asan-linux-release-x64-try,vm-checked-mac-release-arm64-try,vm-eager-optimization-linux-release-ia32-try,vm-eager-optimization-linux-release-x64-try,vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64c-try,vm-ffi-qemu-linux-release-arm-try,vm-ffi-qemu-linux-release-riscv64-try,vm-fuchsia-release-x64-try,vm-kernel-linux-debug-x64-try,vm-kernel-precomp-linux-release-x64-try,vm-linux-debug-ia32-try,vm-linux-debug-x64-try,vm-linux-debug-x64c-try,vm-mac-debug-arm64-try,vm-mac-debug-x64-try,vm-msan-linux-release-x64-try,vm-reload-linux-debug-x64-try,vm-reload-rollback-linux-debug-x64-try,vm-ubsan-linux-release-x64-try,vm-win-debug-arm64-try,vm-win-debug-x64-try,vm-win-debug-x64c-try,vm-win-release-ia32-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/349061
Commit-Queue: Daco Harkes <[email protected]>
Bot-Commit: Rubber Stamper <[email protected]>
Reviewed-by: Zach Anderson <[email protected]>
Reviewed-by: Martin Kustermann <[email protected]>

Author: dcharkes

pkg/analyzer/lib/src/generated/ffi_verifier.dart

@@ -219,9 +219,7 @@ class FfiVerifier extends RecursiveAstVisitor<void> {
     if (element is MethodElement) {
       var enclosingElement = element.enclosingElement;
       if (enclosingElement.isNativeStructPointerExtension ||
-          enclosingElement.isNativeStructArrayExtension ||
-          enclosingElement.isNativeUnionPointerExtension ||
-          enclosingElement.isNativeUnionArrayExtension) {
+          enclosingElement.isNativeStructArrayExtension) {
         if (element.name == '[]') {
           _validateRefIndexed(node);
         }
@@ -234,12 +232,10 @@ class FfiVerifier extends RecursiveAstVisitor<void> {
     var constructor = node.constructorName.staticElement;
     var class_ = constructor?.enclosingElement;
     if (class_.isStructSubclass || class_.isUnionSubclass) {
-      if (!constructor!.isFactory) {
-        _errorReporter.reportErrorForNode(
-          FfiCode.CREATION_OF_STRUCT_OR_UNION,
-          node.constructorName,
-        );
-      }
+      _errorReporter.reportErrorForNode(
+        FfiCode.CREATION_OF_STRUCT_OR_UNION,
+        node.constructorName,
+      );
     } else if (class_.isNativeCallable) {
       _validateNativeCallable(node);
     }
@@ -293,10 +289,6 @@ class FfiVerifier extends RecursiveAstVisitor<void> {
         } else if (element.name == 'elementAt') {
           _validateElementAt(node);
         }
-      } else if (enclosingElement.isStruct || enclosingElement.isUnion) {
-        if (element.name == 'create') {
-          _validateCreate(node, enclosingElement.name!);
-        }
       } else if (enclosingElement.isNative) {
         if (element.name == 'addressOf') {
           _validateNativeAddressOf(node);
@@ -328,8 +320,7 @@ class FfiVerifier extends RecursiveAstVisitor<void> {
     var element = node.staticElement;
     if (element != null) {
       var enclosingElement = element.enclosingElement;
-      if (enclosingElement.isNativeStructPointerExtension ||
-          enclosingElement.isNativeUnionPointerExtension) {
+      if (enclosingElement.isNativeStructPointerExtension) {
         if (element.name == 'ref') {
           _validateRefPrefixedIdentifier(node);
         }
@@ -343,8 +334,7 @@ class FfiVerifier extends RecursiveAstVisitor<void> {
     var element = node.propertyName.staticElement;
     if (element != null) {
       var enclosingElement = element.enclosingElement;
-      if (enclosingElement.isNativeStructPointerExtension ||
-          enclosingElement.isNativeUnionPointerExtension) {
+      if (enclosingElement.isNativeStructPointerExtension) {
         if (element.name == 'ref') {
           _validateRefPropertyAccess(node);
         }
@@ -1173,22 +1163,6 @@ class FfiVerifier extends RecursiveAstVisitor<void> {
     }
   }
 
-  void _validateCreate(MethodInvocation node, String errorClass) {
-    final typeArgumentTypes = node.typeArgumentTypes;
-    if (typeArgumentTypes == null || typeArgumentTypes.length != 1) {
-      return;
-    }
-    final DartType dartType = typeArgumentTypes[0];
-    if (!_isValidFfiNativeType(dartType)) {
-      final AstNode errorNode = node;
-      _errorReporter.reportErrorForNode(
-        FfiCode.NON_CONSTANT_TYPE_ARGUMENT,
-        errorNode,
-        ['$errorClass.create'],
-      );
-    }
-  }
-
   void _validateElementAt(MethodInvocation node) {
     var targetType = node.realTarget?.staticType;
     if (targetType is InterfaceType && targetType.isPointer) {
@@ -1651,7 +1625,7 @@ class FfiVerifier extends RecursiveAstVisitor<void> {
   /// Validate the invocation of the extension method
   /// `Pointer<T extends Struct>.ref`.
   void _validateRefPrefixedIdentifier(PrefixedIdentifier node) {
-    var targetType = node.prefix.staticType;
+    var targetType = node.prefix.typeOrThrow;
     if (!_isValidFfiNativeType(targetType,
         allowVoid: false, allowEmptyStruct: true)) {
       final AstNode errorNode = node;
@@ -1948,20 +1922,6 @@ extension on Element? {
         element.isFfiExtension;
   }
 
-  bool get isNativeUnionArrayExtension {
-    final element = this;
-    return element is ExtensionElement &&
-        element.name == 'UnionArray' &&
-        element.isFfiExtension;
-  }
-
-  bool get isNativeUnionPointerExtension {
-    final element = this;
-    return element is ExtensionElement &&
-        element.name == 'UnionPointer' &&
-        element.isFfiExtension;
-  }
-
   /// Return `true` if this represents the class `Opaque`.
   bool get isOpaque {
     final element = this;

pkg/front_end/testcases/general/ffi_sample.dart.strong.transformed.expect

@@ -9,7 +9,6 @@ library /*isLegacy*/;
 import self as self;
 import "dart:core" as core;
 import "dart:ffi" as ffi;
-import "dart:typed_data" as typ;
 
 import "dart:ffi";
 import "package:ffi/ffi.dart";
@@ -19,9 +18,6 @@ class Coordinate extends ffi::Struct {
   constructor #fromTypedDataBase(synthesized core::Object #typedDataBase) → self::Coordinate
     : super ffi::Struct::_fromTypedDataBase(#typedDataBase)
     ;
-  constructor #fromTypedData(synthesized typ::TypedData #typedData, synthesized core::int #offset, synthesized core::int #sizeInBytes) → self::Coordinate
-    : super ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-    ;
   static factory allocate(ffi::Allocator* allocator, core::double* x, core::double* y, ffi::Pointer<self::Coordinate*>* next) → self::Coordinate* {
     return let final self::Coordinate* #t1 = new self::Coordinate::#fromTypedDataBase(allocator.{ffi::Allocator::allocate}<self::Coordinate*>(self::Coordinate::#sizeOf){(core::int, {alignment: core::int?}) → ffi::Pointer<self::Coordinate*>}!) in block {
       #t1.{self::Coordinate::x} = x;

pkg/front_end/testcases/general/ffi_sample.dart.weak.transformed.expect

@@ -2,7 +2,6 @@ library /*isLegacy*/;
 import self as self;
 import "dart:core" as core;
 import "dart:ffi" as ffi;
-import "dart:typed_data" as typ;
 
 import "dart:ffi";
 import "package:ffi/ffi.dart";
@@ -12,9 +11,6 @@ class Coordinate extends ffi::Struct {
   constructor #fromTypedDataBase(synthesized core::Object #typedDataBase) → self::Coordinate
     : super ffi::Struct::_fromTypedDataBase(#typedDataBase)
     ;
-  constructor #fromTypedData(synthesized typ::TypedData #typedData, synthesized core::int #offset, synthesized core::int #sizeInBytes) → self::Coordinate
-    : super ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-    ;
   static factory allocate(ffi::Allocator* allocator, core::double* x, core::double* y, ffi::Pointer<self::Coordinate*>* next) → self::Coordinate* {
     return let final self::Coordinate* #t1 = new self::Coordinate::#fromTypedDataBase(allocator.{ffi::Allocator::allocate}<self::Coordinate*>(self::Coordinate::#sizeOf){(core::int, {alignment: core::int?}) → ffi::Pointer<self::Coordinate*>}!) in block {
       #t1.{self::Coordinate::x} = x;

pkg/front_end/testcases/incremental/crash_05.yaml.world.1.expect

@@ -11,9 +11,6 @@ library from "org-dartlang-test:///lib.dart" as lib {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → lib::Y
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → lib::Y
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     @#C7
     get yy() → dart.core::int
       return dart.ffi::_loadUint32(this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object}, #C9.{dart.core::List::[]}(dart.ffi::_abi()){(dart.core::int) → dart.core::int*});
@@ -38,9 +35,6 @@ library from "org-dartlang-test:///main.dart" as main {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → main::X
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → main::X
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     get xx() → lib::Y
       return new lib::Y::#fromTypedDataBase( block {
         synthesized dart.core::Object #typedDataBase = this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object};

pkg/front_end/testcases/incremental/crash_05.yaml.world.2.expect

@@ -11,9 +11,6 @@ library from "org-dartlang-test:///lib.dart" as lib {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → lib::Y
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → lib::Y
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     @#C7
     get yy() → dart.core::int
       return dart.ffi::_loadUint32(this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object}, #C9.{dart.core::List::[]}(dart.ffi::_abi()){(dart.core::int) → dart.core::int*});
@@ -38,9 +35,6 @@ library from "org-dartlang-test:///main.dart" as main {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → main::X
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → main::X
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     get xx() → lib::Y
       return new lib::Y::#fromTypedDataBase( block {
         synthesized dart.core::Object #typedDataBase = this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object};

pkg/front_end/testcases/incremental/crash_06.yaml.world.1.expect

@@ -29,9 +29,6 @@ library from "org-dartlang-test:///structs.dart" as str {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → str::A
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → str::A
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     get yy() → str::Y
       return new str::Y::#fromTypedDataBase( block {
         synthesized dart.core::Object #typedDataBase = this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object};
@@ -50,9 +47,6 @@ library from "org-dartlang-test:///structs.dart" as str {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → str::Y
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → str::Y
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     external get zz() → invalid-type;
     external set zz(synthesized invalid-type #externalFieldValue) → void;
     @#C10

pkg/front_end/testcases/incremental/crash_06.yaml.world.2.expect

@@ -29,9 +29,6 @@ library from "org-dartlang-test:///structs.dart" as str {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → str::A
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → str::A
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     get yy() → str::Y
       return new str::Y::#fromTypedDataBase( block {
         synthesized dart.core::Object #typedDataBase = this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object};
@@ -50,9 +47,6 @@ library from "org-dartlang-test:///structs.dart" as str {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → str::Y
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → str::Y
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     external get zz() → invalid-type;
     external set zz(synthesized invalid-type #externalFieldValue) → void;
     @#C10

pkg/front_end/testcases/incremental/ffi_01.yaml.world.1.expect

@@ -8,9 +8,6 @@ library from "org-dartlang-test:///lib.dart" as lib {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → lib::Coordinate
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → lib::Coordinate
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     @#C8
     get x() → dart.core::double
       return dart.ffi::_loadDouble(this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object}, #C10.{dart.core::List::[]}(dart.ffi::_abi()){(dart.core::int) → dart.core::int*});

pkg/front_end/testcases/incremental/ffi_01.yaml.world.2.expect

@@ -8,9 +8,6 @@ library from "org-dartlang-test:///lib.dart" as lib {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → lib::Coordinate
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → lib::Coordinate
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     @#C8
     get x() → dart.core::double
       return dart.ffi::_loadDouble(this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object}, #C10.{dart.core::List::[]}(dart.ffi::_abi()){(dart.core::int) → dart.core::int*});

pkg/front_end/testcases/incremental/ffi_02.yaml.world.1.expect

@@ -8,9 +8,6 @@ library from "org-dartlang-test:///lib.dart" as lib {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → lib::Coordinate
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → lib::Coordinate
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     @#C8
     get x() → dart.core::double
       return dart.ffi::_loadDouble(this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object}, #C10.{dart.core::List::[]}(dart.ffi::_abi()){(dart.core::int) → dart.core::int*});

pkg/front_end/testcases/incremental/issue_46666.yaml.world.1.expect

@@ -11,9 +11,6 @@ library from "org-dartlang-test:///a.dart" as a {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → a::StructA
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → a::StructA
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     get a1() → dart.ffi::Pointer<dart.ffi::Void>
       return dart.ffi::_loadPointer<dart.ffi::Void>(this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object}, #C9.{dart.core::List::[]}(dart.ffi::_abi()){(dart.core::int) → dart.core::int*});
     set a1(synthesized dart.ffi::Pointer<dart.ffi::Void> #externalFieldValue) → void
@@ -45,9 +42,6 @@ library from "org-dartlang-test:///a.dart" as a {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → a::NestedStruct
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → a::NestedStruct
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     get n1() → dart.ffi::Pointer<dart.ffi::Void>
       return dart.ffi::_loadPointer<dart.ffi::Void>(this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object}, #C9.{dart.core::List::[]}(dart.ffi::_abi()){(dart.core::int) → dart.core::int*});
     set n1(synthesized dart.ffi::Pointer<dart.ffi::Void> #externalFieldValue) → void
@@ -80,9 +74,6 @@ library from "org-dartlang-test:///b.dart" as b {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → b::StructB
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → b::StructB
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     get b1() → a::StructA
       return new a::StructA::#fromTypedDataBase( block {
         synthesized dart.core::Object #typedDataBase = this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object};

pkg/front_end/testcases/incremental/issue_46666.yaml.world.2.expect

@@ -11,9 +11,6 @@ library from "org-dartlang-test:///a.dart" as a {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → a::StructA
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → a::StructA
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     get a1() → dart.ffi::Pointer<dart.ffi::Void>
       return dart.ffi::_loadPointer<dart.ffi::Void>(this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object}, #C9.{dart.core::List::[]}(dart.ffi::_abi()){(dart.core::int) → dart.core::int*});
     set a1(synthesized dart.ffi::Pointer<dart.ffi::Void> #externalFieldValue) → void
@@ -45,9 +42,6 @@ library from "org-dartlang-test:///a.dart" as a {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → a::NestedStruct
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → a::NestedStruct
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     get n1() → dart.ffi::Pointer<dart.ffi::Void>
       return dart.ffi::_loadPointer<dart.ffi::Void>(this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object}, #C9.{dart.core::List::[]}(dart.ffi::_abi()){(dart.core::int) → dart.core::int*});
     set n1(synthesized dart.ffi::Pointer<dart.ffi::Void> #externalFieldValue) → void
@@ -80,9 +74,6 @@ library from "org-dartlang-test:///b.dart" as b {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → b::StructB
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → b::StructB
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     get b1() → a::StructA
       return new a::StructA::#fromTypedDataBase( block {
         synthesized dart.core::Object #typedDataBase = this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object};

pkg/front_end/testcases/incremental/no_outline_change_35.yaml.world.1.expect

@@ -8,9 +8,6 @@ library from "org-dartlang-test:///lib.dart" as lib {
     constructor #fromTypedDataBase(synthesized dart.core::Object #typedDataBase) → lib::Coordinate
       : super dart.ffi::Struct::_fromTypedDataBase(#typedDataBase)
       ;
-    constructor #fromTypedData(synthesized dart.typed_data::TypedData #typedData, synthesized dart.core::int #offset, synthesized dart.core::int #sizeInBytes) → lib::Coordinate
-      : super dart.ffi::Struct::_fromTypedData(#typedData, #offset, #sizeInBytes)
-      ;
     @#C8
     get x() → dart.core::double
       return dart.ffi::_loadDouble(this.{dart.ffi::_Compound::_typedDataBase}{dart.core::Object}, #C10.{dart.core::List::[]}(dart.ffi::_abi()){(dart.core::int) → dart.core::int*});