Corentin Jabot 34abc5b75d [Clang] Fix a crash when taking the address of a consteval lambda ...

The `_invoke` function of lambdas was not respecting
the constexpr/consteval specifier of the call operator, so it was possible
to take its address in a non-immmediately invoked context,
even if the call operator was itself consteval.

In addition, we improve the diagnostic emmited in the lambda case
not to show that `invoke` method.

Fixes #57682

Reviewed By: aaron.ballman, #clang-language-wg

Differential Revision: https://reviews.llvm.org/D144627

2023-02-23 15:26:37 +01:00

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