llvm-project

6b7a3b31 - [clang-tidy] Teach `performance-faster-string-find` about `operator+=` (#182697)

[clang-tidy] Teach `performance-faster-string-find` about `operator+=` (#182697) This is a followup to #182633. Like in that PR, `operator+=` doesn't fit with the check name, but the same optimization is applicable to it: https://en.cppreference.com/w/cpp/string/basic_string/operator+=.html