A few more miscellaneous cleanups
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=76294809
Move newQualifiedNameNode and newName methods from NodeUtil to Compiler.

This lets us call them more concisely: compiler.newQualifiedNameNode("foo") instead of NodeUtil.newQualifiedNameNode(compiler.getCodingConvention(), "foo");
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=76307897
A few more code simplifications
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=76309330
Improve the error messages for RefasterJS.
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=76348051