[clang] nolock/noalloc attributes (PR #84983)

[Doug Wyatt via cfe-commits]

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@@ -0,0 +1,84 @@
+// RUN: %clang_cc1 -fsyntax-only -fblocks -verify %s
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dougsonos wrote:

Hm, the standard diagnostic for diagnosing incompatible attributes produces an error, and the last-pass constraint analysis is skipped when there are errors. I'm going to keep those constraint analysis tests in a separate file and give the files more descriptive names, e.g. -parsing, -sema, -constraints.

https://github.com/llvm/llvm-project/pull/84983