[Bug c++/60420] [C++11] Bogus "error: ‘const’ qualifiers cannot be applied to ‘int&’" with lambda

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60420

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> ---
... unless the "or of a template type argument" part applies (but clang accepts
both the original testcase and my Comment #1?!?)