Remove obsolete comment.
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=66454213
Use newStringNode instead of IR.name() so that the new node will have the correct source information.
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=66456385
Add externs for angular.$routeParams and angular.$window.
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=66467049
Add language-mode awareness to the AstValidator.
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=66467803
Prepare for goog.defineClass moving out of labs:
@constructor is implied, if not annotated @interface
@extends is implied if a super type is supplied
@struct is implied

Generally, merge class and constructor JSDoc but constructor parameters, etc must be declared on the constructor.
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=66524257
Fix AstValidator to accept a STRING_KEY node with no children, if we are in ES6 mode.
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=66540088
Fix spurious error when outputWrapper is empty
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=66541673