[clang] [CIR] Recognize strlen in the IdiomRecognizer pass (PR #210400)

[Erich Keane via cfe-commits]

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@@ -0,0 +1,172 @@
+// RUN: cir-opt %s --cir-idiom-recognizer -split-input-file | FileCheck %s
+
+// Negative coverage for the strlen recognizer, exercised directly on CIR so
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erichkeane wrote:

This comment adds nothing, please don't put these in, I know your AI will generate these, but they are almost always worthless.

https://github.com/llvm/llvm-project/pull/210400