Steps towards making dart2js JS AST templates an indepentent library.

pkg/compiler/lib/src/js/nodes.dart

Index: pkg/compiler/lib/src/js/nodes.dart
diff --git a/pkg/compiler/lib/src/js/nodes.dart b/pkg/compiler/lib/src/js/nodes.dart
index 60b3a85976fcaa55fa3f74680b1c695510d715bf..7dd1f852869a7a0a3b2a0aed55cece91dd9da647 100644
--- a/pkg/compiler/lib/src/js/nodes.dart
+++ b/pkg/compiler/lib/src/js/nodes.dart
@@ -522,8 +522,8 @@ class LiteralStatement extends Statement {
   LiteralStatement _clone() => new LiteralStatement(code);
 }
 
-// Not a real javascript node, but represents the yield statement from a dart
-// program translated to javascript.
+// Not a real JavaScript node, but represents the yield statement from a dart
+// program translated to JavaScript.
 class DartYield extends Statement {
   final Expression expression;
 
@@ -1127,7 +1127,7 @@ class RegExpLiteral extends Expression {
 /**
  * An asynchronous await.
  *
- * Not part of javascript. We desugar this expression before outputting.
+ * Not part of JavaScript. We desugar this expression before outputting.
  * Should only occur in a [Fun] with `asyncModifier` async or asyncStar.
  */
 class Await extends Expression {