Begin moving code generation tools from analysis_server to analyzer.

pkg/analyzer/lib/src/codegen/text_formatter.dart

Index: pkg/analyzer/lib/src/codegen/text_formatter.dart
diff --git a/pkg/analysis_server/tool/spec/text_formatter.dart b/pkg/analyzer/lib/src/codegen/text_formatter.dart
similarity index 97%
copy from pkg/analysis_server/tool/spec/text_formatter.dart
copy to pkg/analyzer/lib/src/codegen/text_formatter.dart
index a4eb82c5caf325d3548637e833f7299d47007c35..28669e08f51c8b14c177609bbfd08c6367dd91c1 100644
--- a/pkg/analysis_server/tool/spec/text_formatter.dart
+++ b/pkg/analyzer/lib/src/codegen/text_formatter.dart
@@ -3,13 +3,14 @@
 // BSD-style license that can be found in the LICENSE file.
 
 /**
- * Code for converting HTML into text, for use in doc comments.
+ * Code for converting HTML into text, for use during code generation of
+ * analyzer and analysis server.
  */
-library text.formatter;
+library analyzer.src.codegen.text_formatter;
 
 import 'package:html/dom.dart' as dom;
 
-import 'codegen_tools.dart';
+import 'tools.dart';
 
 final RegExp whitespace = new RegExp(r'\s');