Clean up hints

pkg/analyzer/test/src/task/strong_mode_test.dart

 // Copyright (c) 2015, 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 test.src.task.strong_mode_test;
 
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/task/strong_mode.dart';
@@ skipping 234 matching lines @@
     InstanceMemberInferrer inferrer = createInferrer;
     String fieldName = 'f';
     CompilationUnitElement unit = resolve('''
 class A {
   final $fieldName;
 }
 class B extends A {
   final $fieldName = 0;
 }
 ''');
-    ClassElement classA = unit.getType('A');
-    FieldElement fieldA = classA.getField(fieldName);
-    PropertyAccessorElement getterA = classA.getGetter(fieldName);
     ClassElement classB = unit.getType('B');
     FieldElement fieldB = classB.getField(fieldName);
     PropertyAccessorElement getterB = classB.getGetter(fieldName);
     expect(fieldB.type.isDynamic, isTrue);
     expect(getterB.returnType.isDynamic, isTrue);
 
     inferrer.inferCompilationUnit(unit);
 
     expect(fieldB.type, inferrer.typeProvider.intType);
     expect(getterB.returnType, fieldB.type);
@@ skipping 289 matching lines @@
     CompilationUnitElement unit = resolve('''
 class A {
   int get $getterName => 0;
   set $getterName(String value) {}
 }
 class B extends A {
   set $getterName(x) {}
 }
 ''');
     ClassElement classA = unit.getType('A');
-    FieldElement fieldA = classA.getField(getterName);
     PropertyAccessorElement setterA = classA.getSetter(getterName);
     ClassElement classB = unit.getType('B');
     FieldElement fieldB = classB.getField(getterName);
     PropertyAccessorElement setterB = classB.getSetter(getterName);
     expect(fieldB.type.isDynamic, isTrue);
     expect(setterB.parameters[0].type.isDynamic, isTrue);
 
     inferrer.inferCompilationUnit(unit);
 
     // Expected behavior is that the getter is inferred: getters and setters
@@ skipping 466 matching lines @@
     }
   }
 }
 ''');
     CompilationUnit unit = context.resolveCompilationUnit2(source, source);
     VariableGatherer gatherer = new VariableGatherer(filter);
     unit.accept(gatherer);
     return gatherer.results;
   }
 }