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

pkg/analysis_server/tool/spec/codegen_analysis_server.dart

Index: pkg/analysis_server/tool/spec/codegen_analysis_server.dart
diff --git a/pkg/analysis_server/tool/spec/codegen_analysis_server.dart b/pkg/analysis_server/tool/spec/codegen_analysis_server.dart
index 8b3c897b433d144fd5ef500c4cd5998861cfe82f..323c39c8da2e532a84a010d9abb3d3f679df74b7 100644
--- a/pkg/analysis_server/tool/spec/codegen_analysis_server.dart
+++ b/pkg/analysis_server/tool/spec/codegen_analysis_server.dart
@@ -7,21 +7,15 @@
  */
 library java.generator.server;
 
+import 'package:analyzer/src/codegen/tools.dart';
+
 import 'api.dart';
 import 'codegen_java.dart';
-import 'codegen_tools.dart';
 
 final GeneratedFile target = javaGeneratedFile(
-    'generated/java/AnalysisServer.java',
+    'tool/spec/generated/java/AnalysisServer.java',
     (Api api) => new CodegenAnalysisServer(api));
 
-/**
- * Translate spec_input.html into AnalysisServer.java.
- */
-main() {
-  target.generate();
-}
-
 class CodegenAnalysisServer extends CodegenJavaVisitor {
   CodegenAnalysisServer(Api api) : super(api);