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

[James Henderson 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 Do not quote already quoted symbols.
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jh7370 wrote:

I can imagine other cases where the quoting behaviour might be useful, so I'd be inclined to drop the "typically to keep ..." part of this sentence.

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