[clang] [Clang] Demote mixed enumeration arithmetic error to a warning (PR #131811)

[via cfe-commits]

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@@ -1,9 +1,10 @@
-// RUN: %clang_cc1 %s -std=c++2c -fsyntax-only -verify -triple %itanium_abi_triple
+// RUN: %clang_cc1 %s -std=c++2c -fsyntax-only -verify=both,expected
+// RUN: %clang_cc1 %s -std=c++2c -fsyntax-only -verify=both,nowarn -Wno-enum-enum-conversion
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cor3ntin wrote:

Comparing with double seems a lot weirder than comparing with another enum and no one complained about that; I think it should remain an error

https://github.com/llvm/llvm-project/pull/131811