[clang] [CIR] Upstream aggregate binary assign handling (PR #163877)

[Bruno Cardoso Lopes via cfe-commits]

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@@ -853,6 +853,14 @@ class CIRGenFunction : public CIRGenTypeCache {
                      FunctionArgList args, clang::SourceLocation loc,
                      clang::SourceLocation startLoc);
 
+  /// returns true if aggregate type has a volatile member.
+  /// TODO(cir): this could be a common AST helper between LLVM / CIR.
+  bool hasVolatileMember(QualType t) {
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bcardosolopes wrote:

Maybe a good opportunity to share this one with OG?

https://github.com/llvm/llvm-project/pull/163877