[clang] Add support for builtin_verbose_trap (PR #79230)

[Paul T Robinson via cfe-commits]

================
@@ -3379,6 +3379,54 @@ Query for this feature with ``__has_builtin(__builtin_debugtrap)``.
 
 Query for this feature with ``__has_builtin(__builtin_trap)``.
 
+``__builtin_verbose_trap``
+--------------------------
+
+``__builtin_verbose_trap`` causes the program to stop its execution abnormally
+and shows a human-readable description of the reason for the termination when a
+debugger is attached or in a symbolicated crash log.
+
+**Syntax**:
+
+.. code-block:: c++
+
+    __builtin_verbose_trap(const char *reason)
+
+**Description**
+
+``__builtin_verbose_trap`` is lowered to the ` ``llvm.trap`` <https://llvm.org/docs/LangRef.html#llvm-trap-intrinsic>`_ builtin.
+Additionally, clang emits debug metadata that represents an artificial inline
----------------
pogo59 wrote:

"metadata" is a clang internal term, of no real meaning to end users, and this page is intended for end users. I think "debugging information" would be better.

https://github.com/llvm/llvm-project/pull/79230