Implement parsing of metadata on local variables.

pkg/analyzer/lib/src/fasta/ast_builder.dart

Index: pkg/analyzer/lib/src/fasta/ast_builder.dart
diff --git a/pkg/analyzer/lib/src/fasta/ast_builder.dart b/pkg/analyzer/lib/src/fasta/ast_builder.dart
index 5ccbd6283bd620dd3e0bb66eb0c2687cf763a088..51101e20b3e32670f7391d028bfcd2df4256f623 100644
--- a/pkg/analyzer/lib/src/fasta/ast_builder.dart
+++ b/pkg/analyzer/lib/src/fasta/ast_builder.dart
@@ -531,6 +531,8 @@ class AstBuilder extends ScopeListener {
     List<VariableDeclaration> variables = popList(count);
     TypeAnnotation type = pop();
     pop(); // TODO(paulberry): Modifiers.
+    pop(); // Metadata.
+    pop(); // Comment.
     push(ast.variableDeclarationStatement(
         ast.variableDeclarationList(null, null, null, type, variables),
         toAnalyzerToken(endToken)));
@@ -1850,6 +1852,11 @@ class AstBuilder extends ScopeListener {
     var references = <CommentReference>[];
     return ast.documentationComment(tokens, references);
   }
+
+  @override
+  void debugEvent(String name) {
+    // printEvent(name);
+  }

[scheglov, 2017/04/04 15:57:30]

Do we need this?
Did you forget to remove this after debuging?

[ahe, 2017/04/05 14:18:03]

It's not needed, but keeping the method here makes debugging easier.

 }
 
 /// Data structure placed on the stack to represent a class body.