[vm] Update wasmer and resolve a TODO.

Bug: #37882
Change-Id: Idee2f5383516e62ff3c228968c105835fcd954f3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/118200
Reviewed-by: Ryan Macnak <[email protected]>
Commit-Queue: Liam Appelbe <[email protected]>

Author: liamappelbe

runtime/lib/wasm.cc

@@ -580,13 +580,8 @@ DEFINE_NATIVE_ENTRY(Wasm_callFunction, 0, 2) {
         "Wrong number of args. Expected %" Pu " but found %" Pd ".",
         fn->args().length(), args.Length())));
   }
-  intptr_t length = fn->args().length();
-  if (length == 0) {
-    // Wasmer requires that our params ptr is valid, even if params_len is 0.
-    // TODO(liama): Remove after https://github.com/wasmerio/wasmer/issues/753
-    length = 1;
-  }
-  auto params = std::unique_ptr<wasmer_value_t[]>(new wasmer_value_t[length]);
+  auto params = std::unique_ptr<wasmer_value_t[]>(
+      new wasmer_value_t[fn->args().length()]);
   for (intptr_t i = 0; i < args.Length(); ++i) {
     if (!ToWasmValue(Number::Cast(Object::Handle(args.At(i))), fn->args()[i],
                      &params[i])) {

third_party/wasmer/Cargo.toml

@@ -1,11 +1,11 @@
 [package]
 name = "wasmer"
-version = "0.6.0"
+version = "0.7.0"
 
 [lib]
 name = "wasmer"
 crate-type = ["staticlib"]
 path = "wasmer.rs"
 
 [dependencies]
-wasmer-runtime-c-api = "0.6.0"
+wasmer-runtime-c-api = "0.7.0"