Chris Lattner 3dfff974ec reimplement r90860, fixing a couple of problems: ...

1. Don't make a copy of LangOptions every time a lexer is created.
2. Don't make CharInfo global mutable state.
3. Fix the implementation to properly treat ^Z as EOF instead of as
   horizontal whitespace, which matches the semantic implemented by VC++.

llvm-svn: 91586

2009-12-17 05:29:40 +00:00

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