Clean up analyzer and analysis server hints.

pkg/analyzer/test/generated/resolver_test.dart

 // Copyright (c) 2014, 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 engine.resolver_test;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
@@ skipping 10014 matching lines @@
 
   void test_visitDoubleLiteral() {
     // 4.33
     Expression node = AstFactory.doubleLiteral(4.33);
     expect(_analyze(node), same(_typeProvider.doubleType));
     _listener.assertNoErrors();
   }
 
   void test_visitFunctionExpression_async_block() {
     // () async {}
-    InterfaceType intType = _typeProvider.intType;
     BlockFunctionBody body = AstFactory.blockFunctionBody2();
     body.keyword = TokenFactory.tokenFromString('async');
     FunctionExpression node =
         _resolvedFunctionExpression(AstFactory.formalParameterList([]), body);
     DartType resultType = _analyze(node);
     _assertFunctionType(
         _typeProvider.futureDynamicType,
         null,
         null,
         null,
@@ skipping 3746 matching lines @@
         // check propagated type
         FunctionType propagatedType = node.propagatedType as FunctionType;
         expect(propagatedType.returnType, test.typeProvider.stringType);
       } on AnalysisException catch (e, stackTrace) {
         thrownException[0] = new CaughtException(e, stackTrace);
       }
     }
     return null;
   }
 }