[llvm] Add functionality to llvm-objcopy to remove prefixes (PR #79415)

[Yi Kong via llvm-commits]

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@@ -0,0 +1,78 @@
+# RUN: yaml2obj %s -o %t
+# RUN: llvm-objcopy --prefix-symbols-remove __pf_ %t %t2
+# RUN: llvm-readobj --symbols %t2 | FileCheck %s
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kongy wrote:

Will rewrite this (as well as `prefix-symbols.test`) in a follow-up change.

https://github.com/llvm/llvm-project/pull/79415