Unify the server and plugin versions of the generators

pkg/analysis_server/tool/spec/codegen_matchers.dart

Index: pkg/analysis_server/tool/spec/codegen_matchers.dart
diff --git a/pkg/analysis_server/tool/spec/codegen_matchers.dart b/pkg/analysis_server/tool/spec/codegen_matchers.dart
index 8fbf499de026a77517d7d5ea63f562e7868e3f16..e54c7e215ea6ecb3e6780fee4c86321e221cc79f 100644
--- a/pkg/analysis_server/tool/spec/codegen_matchers.dart
+++ b/pkg/analysis_server/tool/spec/codegen_matchers.dart
@@ -5,8 +5,6 @@
 /**
  * Code generation for the file "matchers.dart".
  */
-library codegen.matchers;
-
 import 'dart:convert';
 
 import 'package:analyzer/src/codegen/tools.dart';
@@ -18,7 +16,7 @@ import 'implied_types.dart';
 import 'to_html.dart';
 
 final GeneratedFile target = new GeneratedFile(
-    'test/integration/protocol_matchers.dart', (String pkgPath) {
+    'test/integration/support/protocol_matchers.dart', (String pkgPath) {
   CodegenMatchersVisitor visitor = new CodegenMatchersVisitor(readApi(pkgPath));
   return visitor.collectCode(visitor.visitApi);
 });
@@ -99,18 +97,15 @@ class CodegenMatchersVisitor extends HierarchicalApiVisitor with CodeGenerator {
 
   @override
   visitApi() {
-    outputHeader();
+    outputHeader(year: '2017');
     writeln();
     writeln('/**');
     writeln(' * Matchers for data types defined in the analysis server API');
     writeln(' */');
-    writeln('library test.integration.protocol.matchers;');
-    writeln();
     writeln("import 'package:test/test.dart';");
     writeln();
     writeln("import 'integration_tests.dart';");
     writeln();
-    writeln();
     for (ImpliedType impliedType in computeImpliedTypes(api).values) {
       makeMatcher(impliedType);
     }