fix debug.riscv64.stderr

Author: YingkaiLi-VM

tests/ui/abi/debug.riscv64.stderr

@@ -31,7 +31,7 @@ error: fn_abi_of(test) = FnAbi {
                    mode: Direct(
                        ArgAttributes {
                            regular: NoUndef,
-                           arg_ext: None,
+                           arg_ext: Zext,
                            pointee_size: Size(0 bytes),
                            pointee_align: None,
                        },
@@ -308,7 +308,7 @@ error: ABIs are not compatible
                    mode: Direct(
                        ArgAttributes {
                            regular: NoUndef,
-                           arg_ext: None,
+                           arg_ext: Zext,
                            pointee_size: Size(0 bytes),
                            pointee_align: None,
                        },
@@ -380,7 +380,7 @@ error: ABIs are not compatible
                    mode: Direct(
                        ArgAttributes {
                            regular: NoUndef,
-                           arg_ext: None,
+                           arg_ext: Sext,
                            pointee_size: Size(0 bytes),
                            pointee_align: None,
                        },
@@ -681,7 +681,7 @@ error: ABIs are not compatible
                    mode: Direct(
                        ArgAttributes {
                            regular: NoUndef,
-                           arg_ext: None,
+                           arg_ext: Sext,
                            pointee_size: Size(0 bytes),
                            pointee_align: None,
                        },
@@ -759,7 +759,7 @@ error: ABIs are not compatible
                    mode: Direct(
                        ArgAttributes {
                            regular: NoUndef,
-                           arg_ext: None,
+                           arg_ext: Sext,
                            pointee_size: Size(0 bytes),
                            pointee_align: None,
                        },
@@ -831,7 +831,7 @@ error: ABIs are not compatible
                    mode: Direct(
                        ArgAttributes {
                            regular: NoUndef,
-                           arg_ext: None,
+                           arg_ext: Sext,
                            pointee_size: Size(0 bytes),
                            pointee_align: None,
                        },