llvm-project

226765b6 - [NFC] [test] [libcxx] Fix invalid escape sequences (#168636)

[NFC] [test] [libcxx] Fix invalid escape sequences (#168636) ``` >>> "_target-has-llvm-21 || target={{.+}}-apple-macosx{{26.[0-9](.\d+)?}}" == r"_target-has-llvm-21 || target={{.+}}-apple-macosx{{26.[0-9](.\\ d+)?}}" <python-input-6>:1: SyntaxWarning: invalid escape sequence '\d' True >>> "_target-has-llvm-20 || target={{.+}}-apple-macosx{{15.[4-9](.\d+)?}}" == r"_target-has-llvm-20 || target={{.+}}-apple-macosx{{15.[4-9](.\\ d+)?}}" <python-input-7>:1: SyntaxWarning: invalid escape sequence '\d' True >>> "_target-has-llvm-19 || target={{.+}}-apple-macosx{{15.[0-3](.\d+)?}}" == r"_target-has-llvm-19 || target={{.+}}-apple-macosx{{15.[0-3](.\\ d+)?}}" <python-input-8>:1: SyntaxWarning: invalid escape sequence '\d' True >>> "_target-has-llvm-18 || target={{.+}}-apple-macosx{{14.[4-9](.\d+)?}}" == r"_target-has-llvm-18 || target={{.+}}-apple-macosx{{14.[4-9](.\\ d+)?}}" <python-input-9>:1: SyntaxWarning: invalid escape sequence '\d' True ```