David Blaikie 800a916f99 Emit DW_TAG_formal_parameter for unnamed parameters.
This change essentially reverts r87069 which came without a test case. It
causes no regressions in the GDB 7.5 test suite & fixes 25 xfails (commit
to the test suite to follow). If anyone can present a test case that
demonstrates why this check is necessary I'd be happy to account for it in one
way or another.

llvm-svn: 171609
2013-01-05 07:43:02 +00:00
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