Refactor analysis server code generation to re-use logic from analyzer.

pkg/analysis_server/tool/spec/codegen_inttest_methods.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.
 
 /**
  * Code generation for the file "integration_test_methods.dart".
  */
 library codegenInttestMethods;
 
 import 'dart:convert';
 
+import 'package:analyzer/src/codegen/tools.dart';
+
 import 'api.dart';
 import 'codegen_dart.dart';
-import 'codegen_tools.dart';
 import 'from_html.dart';
 import 'to_html.dart';
 
 final GeneratedFile target = new GeneratedFile(
-    '../../test/integration/integration_test_methods.dart', () {
+    'test/integration/integration_test_methods.dart', (String pkgPath) {
   CodegenInttestMethodsVisitor visitor =
-      new CodegenInttestMethodsVisitor(readApi());
+      new CodegenInttestMethodsVisitor(readApi(pkgPath));
   return visitor.collectCode(visitor.visitApi);
 });
 
 /**
- * Translate spec_input.html into protocol_matchers.dart.
- */
-main() {
-  target.generate();
-}
-
-/**
  * Visitor that generates the code for integration_test_methods.dart
  */
 class CodegenInttestMethodsVisitor extends DartCodegenVisitor
     with CodeGenerator {
   /**
    * Visitor used to produce doc comments.
    */
   final ToHtmlVisitor toHtmlVisitor;
 
   /**
@@ skipping 58 matching lines @@
     outputHeader();
     writeln();
     writeln('/**');
     writeln(' * Convenience methods for running integration tests');
     writeln(' */');
     writeln('library test.integration.methods;');
     writeln();
     writeln("import 'dart:async';");
     writeln();
     writeln("import 'package:analysis_server/plugin/protocol/protocol.dart';");
-    writeln("import 'package:analysis_server/src/protocol/protocol_internal.dart';");
+    writeln(
+        "import 'package:analysis_server/src/protocol/protocol_internal.dart';");
     writeln("import 'package:unittest/unittest.dart';");
     writeln();
     writeln("import 'integration_tests.dart';");
     writeln("import 'protocol_matchers.dart';");
     writeln();
     writeln();
     writeln('/**');
     writeln(' * Convenience methods for running integration tests');
     writeln(' */');
     writeln('abstract class IntegrationTestMixin {');
@@ skipping 143 matching lines @@
         } else {
           writeln('expect(result, isNull);');
           writeln('return null;');
         }
       });
       writeln('});');
     });
     writeln('}');
   }
 }