[clang] [clang] Rename diag notes that assumed precompiled dependencies are pch's, NFCI (PR #142161)

[Jan Svoboda via cfe-commits]

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@@ -24,8 +24,9 @@ def err_fe_ast_file_modified : Error<
     DefaultFatal;
 def err_fe_pch_file_overridden : Error<
     "file '%0' from the precompiled header has been overridden">;
-def note_pch_required_by : Note<"'%0' required by '%1'">;
-def note_pch_rebuild_required : Note<"please rebuild precompiled header '%0'">;
+def note_ast_file_required_by : Note<"'%0' required by '%1'">;
+def note_ast_file_rebuild_required
+    : Note<"please rebuild precompiled file '%0'">;
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jansvoboda11 wrote:

Ok, in that case I'll defer to @vsapsai who was trying to get some unification of terminology in diagnostics in https://github.com/llvm/llvm-project/pull/101413.

https://github.com/llvm/llvm-project/pull/142161