[clang] [clang] allow canonicalizing assumed template names (PR #183222)

[Oliver Hunt via cfe-commits]

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@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 -verify %s
+
+int bar;
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ojhunt wrote:

maybe just label the line and reference from the below errors?

https://github.com/llvm/llvm-project/pull/183222