llvm-project

1cb8afb2 - [Testing] Use is_detected for StringMapEntry ostream check (NFC) (#159954)

[Testing] Use is_detected for StringMapEntry ostream check (NFC) (#159954) This patch replaces a std::void_t-based detection of the streaming (<<) operator with a llvm::is_detected-based detection. This way, we don't have to roll our own SFINAE logic and fallback mechanism.