[PATCH] DW_OP_const* is invalid as a location

[Katya Romanova]

Buildbots spotted a failure for PowerPC platform for the incorrect-variable-debugloc1.ll test that I added. 
Uploading a diff once again.

(1) Eric asked me to add a comment with the explanation in the source file (for the patch itself). Done.
(2) David asked me to change BZ 21776 into PR21776 in the testcase's comment. Done.
(3) I added XFAIL condition (and a comment) for PowerPC platform.

Does it look good?


http://reviews.llvm.org/D6568

Files:
  lib/CodeGen/AsmPrinter/DwarfDebug.cpp
  test/DebugInfo/incorrect-variable-debugloc1.ll

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