[clang] [Clang][Basic] Enable `__has_feature(cfi)` (PR #151348)

[via cfe-commits]

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@@ -0,0 +1,77 @@
+// RUN: %clang -E -fvisibility=hidden -flto -fno-sanitize-ignorelist -fsanitize=cfi -c %s -o - | FileCheck %s --check-prefix=CHECK-CFI
+// RUN: %clang -E -fvisibility=hidden -flto -fno-sanitize-ignorelist -fsanitize=cfi -fsanitize-cfi-cross-dso -c %s -o - | FileCheck %s --check-prefix=CHECK-CFI
+// RUN: %clang -E -fvisibility=hidden -flto -fno-sanitize-ignorelist -fsanitize=cfi -fno-sanitize=cfi-nvcall,cfi-vcall,cfi-mfcall,cfi-icall -c %s -o - | FileCheck %s --check-prefix=CHECK-CFI
+// RUN: %clang -E -fsanitize=kcfi -c %s -o - | FileCheck %s --check-prefix=CHECK-CFI
+// CHECK-CFI: CFISanitizerEnabled
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moorabbit wrote:

Sounds good. Tried to fix it in a new commit.

https://github.com/llvm/llvm-project/pull/151348