Implement metadata on methods and fields.

pkg/front_end/lib/src/fasta/fasta_codes_generated.dart

 // Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // NOTE: THIS FILE IS GENERATED. DO NOT EDIT.
 //
 // Instead modify 'pkg/front_end/messages.yaml' and run
 // 'pkg/front_end/tool/_fasta/generate_messages.dart' to update.
 
 part of fasta.codes;
@@ skipping 961 matching lines @@
 // DO NOT EDIT. THIS FILE IS GENERATED. SEE TOP OF FILE.
 FastaMessage _formatInvalidInlineFunctionType(Uri uri, int charOffset) {
   return new FastaMessage(uri, charOffset, codeInvalidInlineFunctionType,
       message: "Invalid inline function type.",
       tip:
           "Try changing the inline function type (as in 'int f()') to a prefixed function type using the `Function` keyword (as in 'int Function() f').",
       arguments: {});
 }
 
 // DO NOT EDIT. THIS FILE IS GENERATED. SEE TOP OF FILE.
+const FastaCode<_MetadataTypeArguments> codeMetadataTypeArguments =
+    const FastaCode<_MetadataTypeArguments>("MetadataTypeArguments",
+        template: r"An annotation (metadata) can't use type arguments.",
+        dart2jsCode: "FASTA_IGNORED",
+        format: _formatMetadataTypeArguments);
+
+typedef FastaMessage _MetadataTypeArguments(Uri uri, int charOffset);
+
+// DO NOT EDIT. THIS FILE IS GENERATED. SEE TOP OF FILE.
+FastaMessage _formatMetadataTypeArguments(Uri uri, int charOffset) {
+  return new FastaMessage(uri, charOffset, codeMetadataTypeArguments,
+      message: "An annotation (metadata) can't use type arguments.",
+      arguments: {});
+}
+
+// DO NOT EDIT. THIS FILE IS GENERATED. SEE TOP OF FILE.
 const FastaCode<_ExpectedBody> codeExpectedBody =
     const FastaCode<_ExpectedBody>("ExpectedBody",
         template: r"Expected a function body or '=>'.",
         tip: r"Try adding {}.",
         dart2jsCode: "BODY_EXPECTED",
         format: _formatExpectedBody);
 
 typedef FastaMessage _ExpectedBody(Uri uri, int charOffset);
 
 // DO NOT EDIT. THIS FILE IS GENERATED. SEE TOP OF FILE.
@@ skipping 112 matching lines @@
 // DO NOT EDIT. THIS FILE IS GENERATED. SEE TOP OF FILE.
 FastaMessage _formatNonAsciiIdentifier(
     Uri uri, int charOffset, String character, int codePoint) {
   String unicode = "(U+${codePoint.toRadixString(16).padLeft(4, '0')})";
   return new FastaMessage(uri, charOffset, codeNonAsciiIdentifier,
       message:
           "The non-ASCII character '$character' ($unicode) can't be used in identifiers, only in strings and comments.",
       tip: "Try using an US-ASCII letter, a digit, '_' (an underscore), or '\$' (a dollar sign).",
       arguments: {'character': character, 'codePoint': codePoint});
 }