[clang] [clang][deps] Use `ModuleDepCollector` for Make output (PR #182063)

[Jan Svoboda via cfe-commits]

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@@ -950,12 +957,9 @@ void ModuleDepCollector::addVisibleModules() {
 
 static StringRef makeAbsoluteAndPreferred(CompilerInstance &CI, StringRef Path,
                                           SmallVectorImpl<char> &Storage) {
-  if (llvm::sys::path::is_absolute(Path) &&
-      !llvm::sys::path::is_style_windows(llvm::sys::path::Style::native))
-    return Path;
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jansvoboda11 wrote:

This is just an optimization to not re allocate the path if it's absolute and doesn't need separator canonicalization. Now that that I need to call `remove_dots()` (https://github.com/llvm/llvm-project/pull/182063#discussion_r2823411756), I'd need to check that this path doesn't contain dot components to see if it's safe to skip the code below. So I decided to just drop the optimization entirely.

https://github.com/llvm/llvm-project/pull/182063