[clang] [Coverage][Expansion] handle nested macros in scratch space (PR #89869)

[Wentao Zhang via cfe-commits]

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@@ -517,7 +552,7 @@ class CoverageMappingBuilder {
     SourceRegionFilter Filter;
     for (const auto &FM : FileIDMapping) {
       SourceLocation ExpandedLoc = FM.second.second;
-      SourceLocation ParentLoc = getIncludeOrExpansionLoc(ExpandedLoc);
+      SourceLocation ParentLoc = getIncludeOrExpansionLoc(ExpandedLoc, false);
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whentojump wrote:

Hi, in the initial version we were actually using a separate function (but with some duplicate code). See this commit https://github.com/llvm/llvm-project/pull/89869/commits/145c807a177db8e649f7f3343d640a000e65cebb

Do you suggest that way is better?

https://github.com/llvm/llvm-project/pull/89869