[clang] [CIR] Add CIRGen for cir.unreachable and cir.trap (PR #151363)

[Henrich Lauko via cfe-commits]

================
@@ -269,6 +270,22 @@ RValue CIRGenFunction::emitBuiltinExpr(const GlobalDecl &gd, unsigned builtinID,
   case Builtin::BI__builtin_rotateright32:
   case Builtin::BI__builtin_rotateright64:
     return emitRotate(e, /*isRotateLeft=*/false);
+
+  case Builtin::BI__builtin_trap: {
+    builder.create<cir::TrapOp>(loc);
----------------
xlauko wrote:

```suggestion
    cir::TrapOp::create(builder, loc);
```

https://github.com/llvm/llvm-project/pull/151363