[clang] [Clang] __has_builtin should return false for aux triple builtins (PR #121839)

[Erich Keane via cfe-commits]

================
@@ -3,7 +3,10 @@
 // RUN: %clang_cc1 %s -ffreestanding -fms-extensions -fms-compatibility \
 // RUN:  -fms-compatibility-version=19.00 -triple x86_64-pc-windows-msvc -emit-llvm -o -
 // %clang_cc1 %s -ffreestanding -triple x86_64-w64-windows-gnu -fms-extensions -emit-llvm -o -
-// RUN: %clang_cc1 %s -ffreestanding -fopenmp -fopenmp-is-target-device -aux-triple x86_64-unknown-linux-gnu
+//
+// TODO(boomanaiden154)
----------------
erichkeane wrote:

Rather than a `TODO` and the name, a FIXME + the issue should be sufficient.  Names like that in source are one of those things that age poorly :) 

https://github.com/llvm/llvm-project/pull/121839