[llvm] [llvm-readobj][COFF] Add support for more CET and hotpatch flags (PR #150967)

[via llvm-commits]

kkent030315 wrote:

> No, there's very little value to keeping multiple separate test files for just checking individual flags here; as we have one input file and one command, just check all flags in one test file. Other than that, this is starting to look good, thanks!

Ok, sounds reasonable. Tests are now squashed :)

https://github.com/llvm/llvm-project/pull/150967