[llvm] [llvm-objcopy] Add llvm-objcopy option --set-symbol-visibility (PR #80872)

[James Henderson via llvm-commits]

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@@ -44,16 +42,34 @@
 # REGEX-DAG: PROTECTED   1 protected_global
 # REGEX-DAG: PROTECTED   1 protected_weak
 
+## Check that the visibility of symbols specified by a wildcard are set correctly,
+# and that no other symbols are affected
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jh7370 wrote:

```suggestion
## and that no other symbols are affected
```

https://github.com/llvm/llvm-project/pull/80872