[clang] Make -frewrite-includes put an endif at the end of the included text (PR #67613)

[Paul T Robinson via cfe-commits]

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@@ -332,12 +346,14 @@ void InclusionRewriter::CommentOutDirective(Lexer &DirectiveLex,
     // OutputContentUpTo() would not output anything anyway.
     return;
   }
-  OS << "#if 0 /* expanded by -frewrite-includes */" << MainEOL;
+  OS << "#if 0 /* " << getIncludedFileName(Inc)
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pogo59 wrote:

Aha, `-MM` has the same problem, so I'm less concerned about that now. I'll add the toggle for "system" headers later today.

https://github.com/llvm/llvm-project/pull/67613