[Bug c++/70182] c++filt fails to demangle _ZNSt17_Function_handlerIFSt4pairImjEjEZN5folly12addBenchmarkI3$_0EENSt9enable_ifIXeqsr5boost14function_types14function_arityIDTadsrT_onclEEE5valueLi2EEvE4typeEPKcSC_OS7_EUljE_E9_M_invokeERKSt9_Any_dataj

[ian at airs dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70182

Ian Lance Taylor <ian at airs dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |ian at airs dot com

--- Comment #7 from Ian Lance Taylor <ian at airs dot com> ---
For the record, I've fixed these cases in github.com/ianlancetaylor/demangle. 
Looking at the patch there should show how to fix it elsewhere.

https://github.com/ianlancetaylor/demangle/commit/33b3934fafc5026e0b38854a7976b91ad0014a02