Make some parser test helper methods non-static.

pkg/analyzer/test/src/dart/ast/utilities_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 analyzer.test.src.dart.ast.utilities_test;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/standard_ast_factory.dart';
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/element/element.dart';
@@ skipping 352 matching lines @@
 
   Object _getConstantValue(String source) =>
       parseExpression(source).accept(new ConstantEvaluator());
 }
 
 @reflectiveTest
 class NodeLocator2Test extends ParserTestCase {
   void test_onlyStartOffset() {
     String code = ' int vv; ';
     //             012345678
-    CompilationUnit unit = ParserTestCase.parseCompilationUnit(code);
+    CompilationUnit unit = parseCompilationUnit(code);
     TopLevelVariableDeclaration declaration = unit.declarations[0];
     VariableDeclarationList variableList = declaration.variables;
     Identifier typeName = (variableList.type as TypeName).name;
     SimpleIdentifier varName = variableList.variables[0].name;
     expect(new NodeLocator2(0).searchWithin(unit), same(unit));
     expect(new NodeLocator2(1).searchWithin(unit), same(typeName));
     expect(new NodeLocator2(2).searchWithin(unit), same(typeName));
     expect(new NodeLocator2(3).searchWithin(unit), same(typeName));
     expect(new NodeLocator2(4).searchWithin(unit), same(variableList));
     expect(new NodeLocator2(5).searchWithin(unit), same(varName));
     expect(new NodeLocator2(6).searchWithin(unit), same(varName));
     expect(new NodeLocator2(7).searchWithin(unit), same(declaration));
     expect(new NodeLocator2(8).searchWithin(unit), same(unit));
     expect(new NodeLocator2(9).searchWithin(unit), isNull);
     expect(new NodeLocator2(100).searchWithin(unit), isNull);
   }
 
   void test_startEndOffset() {
     String code = ' int vv; ';
     //             012345678
-    CompilationUnit unit = ParserTestCase.parseCompilationUnit(code);
+    CompilationUnit unit = parseCompilationUnit(code);
     TopLevelVariableDeclaration declaration = unit.declarations[0];
     VariableDeclarationList variableList = declaration.variables;
     Identifier typeName = (variableList.type as TypeName).name;
     SimpleIdentifier varName = variableList.variables[0].name;
     expect(new NodeLocator2(-1, 2).searchWithin(unit), isNull);
     expect(new NodeLocator2(0, 2).searchWithin(unit), same(unit));
     expect(new NodeLocator2(1, 2).searchWithin(unit), same(typeName));
     expect(new NodeLocator2(1, 3).searchWithin(unit), same(typeName));
     expect(new NodeLocator2(1, 4).searchWithin(unit), same(variableList));
     expect(new NodeLocator2(5, 6).searchWithin(unit), same(varName));
     expect(new NodeLocator2(5, 7).searchWithin(unit), same(declaration));
     expect(new NodeLocator2(5, 8).searchWithin(unit), same(unit));
     expect(new NodeLocator2(5, 100).searchWithin(unit), isNull);
     expect(new NodeLocator2(100, 200).searchWithin(unit), isNull);
   }
 }
 
 @reflectiveTest
 class NodeLocatorTest extends ParserTestCase {
   void test_range() {
-    CompilationUnit unit =
-        ParserTestCase.parseCompilationUnit("library myLib;");
+    CompilationUnit unit = parseCompilationUnit("library myLib;");
     _assertLocate(
         unit, 4, 10, (node) => node is LibraryDirective, LibraryDirective);
   }
 
   void test_searchWithin_null() {
     NodeLocator locator = new NodeLocator(0, 0);
     expect(locator.searchWithin(null), isNull);
   }
 
   void test_searchWithin_offset() {
-    CompilationUnit unit =
-        ParserTestCase.parseCompilationUnit("library myLib;");
+    CompilationUnit unit = parseCompilationUnit("library myLib;");
     _assertLocate(
         unit, 10, 10, (node) => node is SimpleIdentifier, SimpleIdentifier);
   }
 
   void test_searchWithin_offsetAfterNode() {
-    CompilationUnit unit = ParserTestCase.parseCompilationUnit(r'''
+    CompilationUnit unit = parseCompilationUnit(r'''
 class A {}
 class B {}''');
     NodeLocator locator = new NodeLocator(1024, 1024);
     AstNode node = locator.searchWithin(unit.declarations[0]);
     expect(node, isNull);
   }
 
   void test_searchWithin_offsetBeforeNode() {
-    CompilationUnit unit = ParserTestCase.parseCompilationUnit(r'''
+    CompilationUnit unit = parseCompilationUnit(r'''
 class A {}
 class B {}''');
     NodeLocator locator = new NodeLocator(0, 0);
     AstNode node = locator.searchWithin(unit.declarations[1]);
     expect(node, isNull);
   }
 
   void _assertLocate(CompilationUnit unit, int start, int end,
       Predicate<Object> predicate, Type expectedClass) {
     NodeLocator locator = new NodeLocator(start, end);
@@ skipping 5388 matching lines @@
   /**
    * Assert that a `ToSourceVisitor` will produce the [expectedSource] when
    * visiting the given [node].
    */
   void _assertSource(String expectedSource, AstNode node) {
     PrintStringWriter writer = new PrintStringWriter();
     node.accept(new ToSourceVisitor(writer));
     expect(writer.toString(), expectedSource);
   }
 }