This reverts commit 69549de865.
The change in D135237 can lead to verification failures like `scope must have two or three operands`.
The ongoing work in D132077 does something similar without these failures, so lets wait for that to land and revert this patch.
Reviewed By: aeubanks
Differential Revision: https://reviews.llvm.org/D135395
There can be lots of `MDTuple` debug metadata nodes. For example, `globals: !{!1, !2}` in `!DICompileUnit()`. Search through all debug info to find `MDTuple`'s and remove some of their elements.
For D135114 I was able to get a reproducer with 364 lines without manually deleting elements. After this patch I got it down to 67 lines.
Reviewed By: dblaikie
Differential Revision: https://reviews.llvm.org/D135237
Ellis Hoag