[llvm] [llvm-objcopy][COFF] Update WinCFGuard section contents after stripping (PR #153322)

[James Henderson via llvm-commits]

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@@ -1,8 +1,12 @@
+# .gfids$y, .giats$y and .gljmp$y cf-guard sections consist of .symidx
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jh7370 wrote:

Is there a reason this and `strip-update-ehcont` couldn't be folded together into a single test case that shows that all these sections get updated?

https://github.com/llvm/llvm-project/pull/153322