Util: Improve update_llc_test_checks to scrub macosx-style assembly annotations
Util: Improve update_llc_test_checks to scrub macosx-style assembly annotations

Summary:
In D37523 Sanjay pointed out that the tool does not scrub macosx-style 'End of Function' annotations,
where the comments begin with a double-#.

I tested this patch by verifying all existing occurences of 'End function' are scrubbed:
find ./test/CodeGen/X86 -name '*.ll' | xargs grep -l "End function" | xargs utils/update_llc_test_checks.py --llc-binary build/bin/llc

Reviewers: spatel, chandlerc, craig.topper

Reviewed By: spatel

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D37532

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@312678 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,apple/swift-llvm,apple/swift-llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,apple/swift-llvm,llvm-mirror/llvm,llvm-mirror/llvm,apple/swift-llvm,apple/swift-llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,llvm-mirror/llvm,apple/swift-llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,apple/swift-llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,apple/swift-llvm