[llvm] [llvm-cxxfilt] Add --quote option to quote demangled function names (PR #111871)

[Ronan Keryell via llvm-commits]

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@@ -52,6 +52,11 @@ OPTIONS
 
   Do not demangle function parameters or return types.
 
+.. option:: --quote, -q
+
+  Add `"` `"` around demangled function symbols, typically to keep LLVM/MLIR
+  assembly files with `@<symbols>` valid. Do not quote already quoted symbols.
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keryell wrote:

I thought it would be more inclusive and compassionate to give a use case :smiley: but I can remove it.

https://github.com/llvm/llvm-project/pull/111871