[clang] [alpha.webkit.UncountedLocalVarsChecker] Allow uncounted object references within trivial statements (PR #82229)

[Ryosuke Niwa via cfe-commits]

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@@ -474,4 +504,22 @@ bool TrivialFunctionAnalysis::isTrivialImpl(
   return Result;
 }
 
+bool TrivialFunctionAnalysis::isTrivialImpl(
+    const Stmt *S, TrivialFunctionAnalysis::CacheTy &Cache) {
+  // If the statement isn't in the cache, conservatively assume that
+  // it's not trivial until analysis completes. Unlike a function case,
+  // we don't insert an entry into the cache until Visit returns
+  // since Visit* functions themselves make use of the cache.
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rniwa wrote:

Sure, I need to make TrivialFunctionAnalysisVisitor reference the cache via a reference instead of via copy though.

https://github.com/llvm/llvm-project/pull/82229