dart2js: Construct the entire output as a single AST before printing.

pkg/js_ast/lib/src/builder.dart

Index: pkg/js_ast/lib/src/builder.dart
diff --git a/pkg/js_ast/lib/src/builder.dart b/pkg/js_ast/lib/src/builder.dart
index 8603b208c012be7a17ba3ac467a1047170ab8bfa..12f204e79343dcd347822df75d6c615fbcd92a04 100644
--- a/pkg/js_ast/lib/src/builder.dart
+++ b/pkg/js_ast/lib/src/builder.dart
@@ -329,8 +329,6 @@ class JsBuilder {
   /// [escapedString].
   LiteralString string(String value) => new LiteralString('"$value"');
 
-  LiteralString name(String name) => new LiteralString(name);
-
   LiteralNumber number(num value) => new LiteralNumber('$value');
 
   LiteralBool boolean(bool value) => new LiteralBool(value);