Move tests for parseVariableDeclarationList(), fix for keywords.

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

 // Copyright (c) 2016, 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.
 
 library fasta.analyzer.ast_builder;
 
 import 'package:analyzer/analyzer.dart';
 import 'package:analyzer/dart/ast/ast_factory.dart' show AstFactory;
 import 'package:analyzer/dart/ast/standard_ast_factory.dart' as standard;
 import 'package:analyzer/dart/ast/token.dart' as analyzer show Token;
@@ skipping 512 matching lines @@
     }
     push(variable);
     scope[variable.name.name] = variable.name.staticElement =
         new AnalyzerLocalVariableElemment(variable);
   }
 
   void endVariablesDeclaration(int count, Token endToken) {
     debugEvent("VariablesDeclaration");
     List<VariableDeclaration> variables = popList(count);
     TypeAnnotation type = pop();
-    pop(); // TODO(paulberry): Modifiers.
+    _Modifiers modifiers = pop();
+    Token keyword = modifiers?.finalConstOrVarKeyword;
     push(ast.variableDeclarationStatement(
-        ast.variableDeclarationList(null, null, null, type, variables),
+        ast.variableDeclarationList(
+            null, null, toAnalyzerToken(keyword), type, variables),
         toAnalyzerToken(endToken)));
   }
 
   void handleAssignmentExpression(Token token) {
     debugEvent("AssignmentExpression");
     Expression rhs = pop();
     Expression lhs = pop();
     push(ast.assignmentExpression(lhs, toAnalyzerToken(token), rhs));
   }
 
@@ skipping 1401 matching lines @@
       } else if (identical('static', s)) {
         staticKeyword = token;
       } else if (identical('var', s)) {
         finalConstOrVarKeyword = token;
       } else {
         internalError('Unhandled modifier: $s');
       }
     }
   }
 }