llvm-project

9d49b82d - [clang-scan-deps] Implement P2223R2 for DependencyDirectiveScanner.cpp (#143950)

[clang-scan-deps] Implement P2223R2 for DependencyDirectiveScanner.cpp (#143950) P2223R2 allows the line-continuation slash `\` to be followed by additional whitespace. The Clang lexer already follows this behavior, also for versions prior to C++23. The dependency directive scanner however only implements it for `#define` directives (15d5f5d). This fully implements P2223R2 for the dependency directive scanner (for any C++ standard) and aligns the dependency directive scanner's splicing behavior with that of the Clang lexer. For example, the following code was previously not scanned correctly by `clang-scan-deps` but now works as expected: ```cpp import \<whitespace here> A; ```