[libc-commits] [libc] [libc][test] adds errno clearer test fixture, gtest-style errno and fp except assertions (PR #91608)

[Michael Flanders via libc-commits]

Flandini wrote:

re: gtest api from the May 9 libc meeting: I can change these matchers and the matcher/matcherbase classes to match the gtest api. Do we want the expect/assert macros to also be a subset of gtest's, i.e., not have these special FP errno/except assert/expects? cc @frobtech 

https://github.com/llvm/llvm-project/pull/91608