Rollup merge of #120817 - compiler-errors:more-mir-errors, r=oli-obk

Fix more `ty::Error` ICEs in MIR passes

Fixes #120791 - Add a check for `ty::Error` in the `ByMove` coroutine pass
Fixes #120816 - Add a check for `ty::Error` in the MIR validator

Also a drive-by fix for a FIXME I had asked oli to add

r? oli-obk

compiler/rustc_const_eval/src/transform/validate.rs

@@ -60,6 +60,8 @@ impl<'tcx> MirPass<'tcx> for Validator {
                 ty::Closure(..) => Abi::RustCall,
                 ty::CoroutineClosure(..) => Abi::RustCall,
                 ty::Coroutine(..) => Abi::Rust,
+                // No need to do MIR validation on error bodies
+                ty::Error(_) => return,
                 _ => {
                     span_bug!(body.span, "unexpected body ty: {:?} phase {:?}", body_ty, mir_phase)
                 }