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

pkg/analysis_server/tool/spec/codegen_inttest_methods.dart

Index: pkg/analysis_server/tool/spec/codegen_inttest_methods.dart
diff --git a/pkg/analysis_server/tool/spec/codegen_inttest_methods.dart b/pkg/analysis_server/tool/spec/codegen_inttest_methods.dart
index bdc8910be147ed6b5c464a46f4540b26e7242be4..3b5fde02c6661ff86c08848366fcad39fe93b338 100644
--- a/pkg/analysis_server/tool/spec/codegen_inttest_methods.dart
+++ b/pkg/analysis_server/tool/spec/codegen_inttest_methods.dart
@@ -9,27 +9,21 @@ 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
@@ -108,7 +102,8 @@ class CodegenInttestMethodsVisitor extends DartCodegenVisitor
     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';");