gecko-dev/tools/clang-tidy/test/performance-implicit-conversion-in-loop.json

[["warning", "the type of the loop variable 'foo' is different from the one returned by the iterator and generates an implicit conversion; you can either change the type to the matching one ('const SimpleClass &' but 'const auto&' is always a valid option) or remove the reference to make it explicit that you are creating a new value", "performance-implicit-conversion-in-loop"]]