flow: Update libdefs.

This is partly a followup task from the RN v0.59 upgrade, #3399;
we've upgraded a lot of dependencies, so we should upgrade the
libdefs to match.

Done with:

  $ yarn update-libdefs

This turned up a couple of type errors, because there's now a real
libdef for WebView!  Marked those with fixmes; will fix properly next.

Author: gnprice

flow-typed/npm/@babel/core_vx.x.x.js

@@ -1,5 +1,5 @@
-// flow-typed signature: 437bd829336b4ebb9e979f517332f772
-// flow-typed version: <<STUB>>/@babel/core_v^7.1.2/flow_v0.78.0
+// flow-typed signature: 784dca23415d14a3464a5439193fb6db
+// flow-typed version: <<STUB>>/@babel/core_v^7.4.5/flow_v0.92.0
 
 /**
  * This is an autogenerated libdef stub for:
@@ -42,7 +42,7 @@ declare module '@babel/core/lib/config/files/index-browser' {
   declare module.exports: any;
 }
 
-declare module '@babel/core/lib/config/files/index' {
+declare module '@babel/core/lib/config/files' {
   declare module.exports: any;
 }
 
@@ -74,7 +74,7 @@ declare module '@babel/core/lib/config/helpers/environment' {
   declare module.exports: any;
 }
 
-declare module '@babel/core/lib/config/index' {
+declare module '@babel/core/lib/config' {
   declare module.exports: any;
 }
 
@@ -114,7 +114,7 @@ declare module '@babel/core/lib/config/validation/removed' {
   declare module.exports: any;
 }
 
-declare module '@babel/core/lib/index' {
+declare module '@babel/core/lib' {
   declare module.exports: any;
 }
 
@@ -134,10 +134,6 @@ declare module '@babel/core/lib/transform-file-browser' {
   declare module.exports: any;
 }
 
-declare module '@babel/core/lib/transform-file-sync-browser' {
-  declare module.exports: any;
-}
-
 declare module '@babel/core/lib/transform-file' {
   declare module.exports: any;
 }
@@ -162,7 +158,7 @@ declare module '@babel/core/lib/transformation/file/merge-map' {
   declare module.exports: any;
 }
 
-declare module '@babel/core/lib/transformation/index' {
+declare module '@babel/core/lib/transformation' {
   declare module.exports: any;
 }
 
@@ -198,8 +194,11 @@ declare module '@babel/core/lib/config/files/configuration.js' {
 declare module '@babel/core/lib/config/files/index-browser.js' {
   declare module.exports: $Exports<'@babel/core/lib/config/files/index-browser'>;
 }
+declare module '@babel/core/lib/config/files/index' {
+  declare module.exports: $Exports<'@babel/core/lib/config/files'>;
+}
 declare module '@babel/core/lib/config/files/index.js' {
-  declare module.exports: $Exports<'@babel/core/lib/config/files/index'>;
+  declare module.exports: $Exports<'@babel/core/lib/config/files'>;
 }
 declare module '@babel/core/lib/config/files/package.js' {
   declare module.exports: $Exports<'@babel/core/lib/config/files/package'>;
@@ -222,8 +221,11 @@ declare module '@babel/core/lib/config/helpers/config-api.js' {
 declare module '@babel/core/lib/config/helpers/environment.js' {
   declare module.exports: $Exports<'@babel/core/lib/config/helpers/environment'>;
 }
+declare module '@babel/core/lib/config/index' {
+  declare module.exports: $Exports<'@babel/core/lib/config'>;
+}
 declare module '@babel/core/lib/config/index.js' {
-  declare module.exports: $Exports<'@babel/core/lib/config/index'>;
+  declare module.exports: $Exports<'@babel/core/lib/config'>;
 }
 declare module '@babel/core/lib/config/item.js' {
   declare module.exports: $Exports<'@babel/core/lib/config/item'>;
@@ -252,8 +254,11 @@ declare module '@babel/core/lib/config/validation/plugins.js' {
 declare module '@babel/core/lib/config/validation/removed.js' {
   declare module.exports: $Exports<'@babel/core/lib/config/validation/removed'>;
 }
+declare module '@babel/core/lib/index' {
+  declare module.exports: $Exports<'@babel/core/lib'>;
+}
 declare module '@babel/core/lib/index.js' {
-  declare module.exports: $Exports<'@babel/core/lib/index'>;
+  declare module.exports: $Exports<'@babel/core/lib'>;
 }
 declare module '@babel/core/lib/parse.js' {
   declare module.exports: $Exports<'@babel/core/lib/parse'>;
@@ -267,9 +272,6 @@ declare module '@babel/core/lib/transform-ast.js' {
 declare module '@babel/core/lib/transform-file-browser.js' {
   declare module.exports: $Exports<'@babel/core/lib/transform-file-browser'>;
 }
-declare module '@babel/core/lib/transform-file-sync-browser.js' {
-  declare module.exports: $Exports<'@babel/core/lib/transform-file-sync-browser'>;
-}
 declare module '@babel/core/lib/transform-file.js' {
   declare module.exports: $Exports<'@babel/core/lib/transform-file'>;
 }
@@ -288,8 +290,11 @@ declare module '@babel/core/lib/transformation/file/generate.js' {
 declare module '@babel/core/lib/transformation/file/merge-map.js' {
   declare module.exports: $Exports<'@babel/core/lib/transformation/file/merge-map'>;
 }
+declare module '@babel/core/lib/transformation/index' {
+  declare module.exports: $Exports<'@babel/core/lib/transformation'>;
+}
 declare module '@babel/core/lib/transformation/index.js' {
-  declare module.exports: $Exports<'@babel/core/lib/transformation/index'>;
+  declare module.exports: $Exports<'@babel/core/lib/transformation'>;
 }
 declare module '@babel/core/lib/transformation/normalize-file.js' {
   declare module.exports: $Exports<'@babel/core/lib/transformation/normalize-file'>;

flow-typed/npm/@expo/react-native-action-sheet_vx.x.x.js

@@ -1,5 +1,5 @@
-// flow-typed signature: 3fd521ce52df0abdfc91c367d9cceedd
-// flow-typed version: <<STUB>>/@expo/react-native-action-sheet_v^1.1.0/flow_v0.78.0
+// flow-typed signature: 12e641429bca6ac4c78388bcaa679870
+// flow-typed version: <<STUB>>/@expo/react-native-action-sheet_v^1.1.0/flow_v0.92.0
 
 /**
  * This is an autogenerated libdef stub for:

flow-typed/npm/@remobile/react-native-toast_vx.x.x.js

@@ -1,5 +1,5 @@
-// flow-typed signature: eaf887ef17716a16e27b3e59c76c89d1
-// flow-typed version: <<STUB>>/@remobile/react-native-toast_v^1.0.7/flow_v0.78.0
+// flow-typed signature: 27b213c44e06e12f94d2bb9aa87087a3
+// flow-typed version: <<STUB>>/@remobile/react-native-toast_v^1.0.7/flow_v0.92.0
 
 /**
  * This is an autogenerated libdef stub for: