[clang] [clang-tools-extra] [clang] Improved canonicalization for template specialization types (PR #135119)

[Matheus Izvekov via cfe-commits]

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@@ -168,6 +168,8 @@ class TemplateArgument {
     LLVM_PREFERRED_TYPE(bool)
     unsigned IsDefaulted : 1;
     uintptr_t V;
+    LLVM_PREFERRED_TYPE(bool)
+    unsigned IsCanonicalExpr : 1;
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mizvekov wrote:

Yeah sure. Though it's not going to make a difference in practice because other members of the union are much larger.

https://github.com/llvm/llvm-project/pull/135119