[Bug preprocessor/60723] Line directives with incorrect system header flag

[rth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60723
Bug 60723 depends on bug 61817, which changed state.

Bug 61817 Summary: Inconsistent location of tokens in the expansion list of a built-in macro
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61817

           What    |Removed                     |Added
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             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED