Turns out that some warnings are only emitted with `-O1`...

We don't need it, and it is not always enabled in LLVM or clang, without
reliable way to check (`llvm-config --has-rtti` can return `YES` while clang
is built without rtti).

so that they can be defined in one translation unit while the class is
declared multiple times.

Actually, they appear only in the AST generated by clang-11.

especially if half of them are not seen as implicit afterwards. This can't end
well 

it seems that this is not consistent across clang versions.

also prepare running tests on LLVM 11.

Virgile Prevosto authored 4 years ago and Virgile Prevosto committed 3 years ago

Newer version does not compile on nix because of a missing dependency.

Loïc Correnson authored 4 years ago and Virgile Prevosto committed 3 years ago

This reverts commit c7efb7f759ce2aeb07cd0850b03752390c68296b