[lldb] Tighten ABI assert in StopInfoMachException::DeterminePtrauthFailure (NFC) (#95015)

This patch tightens the assert check for the ABISP object in
`StopInfoMachException::DeterminePtrauthFailure`.

This causes some failure when debugging on a system that doesn't have
pointer authentification support, like on Intel for instance.

rdar://129401926

Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>

Author: medismailben

lldb/source/Plugins/Process/Utility/StopInfoMachException.cpp

@@ -92,9 +92,7 @@ bool StopInfoMachException::DeterminePtrauthFailure(ExecutionContext &exe_ctx) {
 
   Target &target = *exe_ctx.GetTargetPtr();
   Process &process = *exe_ctx.GetProcessPtr();
-  ABISP abi_sp = process.GetABI();
   const ArchSpec &arch = target.GetArchitecture();
-  assert(abi_sp && "Missing ABI info");
 
   // Check for a ptrauth-enabled target.
   const bool ptrauth_enabled_target =
@@ -110,6 +108,9 @@ bool StopInfoMachException::DeterminePtrauthFailure(ExecutionContext &exe_ctx) {
     strm.Printf("Note: Possible pointer authentication failure detected.\n");
   };
 
+  ABISP abi_sp = process.GetABI();
+  assert(abi_sp && "Missing ABI info");
+
   // Check if we have a "brk 0xc47x" trap, where the value that failed to
   // authenticate is in x16.
   Address current_address = current_frame->GetFrameCodeAddress();