[llvm] [llvm-profgen] Support COFF binary (PR #83972)

[Haohai Wen via llvm-commits]

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HaohaiWen wrote:

BTW, adding -gline-tables-only will reduce object size but has no obvious effect for EXE. Looks like min section size for COFF image is 4K.

https://github.com/llvm/llvm-project/pull/83972