[libc] Mass replace enclosing namespace (#67032)

2023-09-26T09:45:04+00:00

This is step 4 of
https://discourse.llvm.org/t/rfc-customizable-namespace-to-allow-testing-the-libc-when-the-system-libc-is-also-llvms-libc/73079

[libc] Combine all math differential fuzzers into one target.

2020-11-20T15:46:15+00:00

Also added diffing of a few more math functions. Combining the diff check
for all of these functions helps us meet the OSS fuzz bar of a minimum of
100 program edges.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D91817

llvm-project.git/libc/fuzzing/math/math_differential_fuzz.cpp, branch main

[libc] Mass replace enclosing namespace (#67032)

[libc] Combine all math differential fuzzers into one target.