[clang] [Coverage] Introduce the type `CounterPair` for RegionCounterMap. NFC. (PR #112724)

[Jessica Paquette via cfe-commits]

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@@ -362,6 +362,8 @@ CodeGenFunction::AddInitializerToStaticVarDecl(const VarDecl &D,
     return GV;
   }
 
+  PGO.markStmtMaybeUsed(D.getInit()); // FIXME: Too lazy
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ornata wrote:

Too lazy?

https://github.com/llvm/llvm-project/pull/112724