I did not take the patch for ClangExpressionParser.cpp since there was a
recent change by Peter for the same line.  Feel free to disagree. :-)

Reference:
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r136580 | pcc | 2011-07-30 15:42:24 -0700 (Sat, 30 Jul 2011) | 3 lines

Add reloc arg to standard JIT createJIT()

Fixes non-__APPLE__ build.  Patch by Matt Johnson!
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Also, I ignore the part of the patch to remove the RegisterContextDarwin*.h/.cpp.

llvm-svn: 136720