[llvm] [llvm][Support][NFC] Disentangle SpecialCaseList parsing and matching (PR #116800)

[Boaz Brickner via llvm-commits]

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@@ -66,6 +68,27 @@ class FileSystem;
 /// fun:cos=functional
 /// fun:sin=functional
 /// ---
+struct ParsedSpecialCaseList {
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bricknerb wrote:

At this point, it seems like you can move this struct to be defined inside SpecialCaseList private section, as it's not part of SpecialCaseList API and not used outside that class.

https://github.com/llvm/llvm-project/pull/116800