Debug Info: Don't bother emitting DW_AT_frame_base if the function has no frame register. "Tested" via an assertion triggered by DwarfExpression.
Debug Info: Don't bother emitting DW_AT_frame_base if the function has
no frame register. "Tested" via an assertion triggered by DwarfExpression.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@225858 91177308-0d34-0410-b5e6-96231b3b80d8

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