[clang] [Driver][BoundsSafety] Add -fbounds-safety-experimental flag (PR #70480)

[Nick Desaulniers via cfe-commits]

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+// RUN: not %clang -fbounds-safety-experimental -x c++ %s 2>&1 | FileCheck -check-prefix ERR %s
+
+// RUN: not %clang -fbounds-safety-experimental -x objective-c %s 2>&1 | FileCheck -check-prefix ERR %s
+
+// RUN: not %clang -fbounds-safety-experimental -x objective-c++ %s 2>&1 | FileCheck -check-prefix ERR %s
+
+// RUN: not %clang -fbounds-safety-experimental -x cuda -nocudalib -nocudainc %s 2>&1 | FileCheck -check-prefix ERR %s
+
+// RUN: not %clang -fbounds-safety-experimental -x renderscript %s 2>&1 | FileCheck -check-prefix ERR %s
+
+// RUN: not %clang_cc1 -fbounds-safety-experimental -x c++ %s 2>&1 | FileCheck -check-prefix ERR %s
+
+// RUN: not %clang_cc1 -fbounds-safety-experimental -x objective-c %s 2>&1 | FileCheck -check-prefix ERR %s
+
+// RUN: not %clang_cc1 -fbounds-safety-experimental -x objective-c++ %s 2>&1 | FileCheck -check-prefix ERR %s
+
+// RUN: not %clang_cc1 -fbounds-safety-experimental -x cuda %s 2>&1 | FileCheck -check-prefix ERR %s
+
+// RUN: not %clang_cc1 -fbounds-safety-experimental -x renderscript %s 2>&1 | FileCheck -check-prefix ERR %s
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nickdesaulniers wrote:

ah, makes sense, consider adding that as a comment

https://github.com/llvm/llvm-project/pull/70480