Merging r182298:

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r182298 | jholewinski | 2013-05-20 09:42:18 -0700 (Mon, 20 May 2013) | 1 line

[NVPTX] Fix mis-use of CurrentFnSym in NVPTXAsmPrinter.  This was causing a symbol name error in the output PTX.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_33@182828 91177308-0d34-0410-b5e6-96231b3b80d8