add clobber_abi("C") to may_unwind inline-asm tests

Author: cynecx

src/test/ui/asm/aarch64/may_unwind.rs

@@ -24,7 +24,7 @@ fn main() {
     let flag = &mut true;
     catch_unwind(AssertUnwindSafe(|| {
         let _foo = Foo(flag);
-        unsafe { asm!("bl _panicky", options(may_unwind)) };
+        unsafe { asm!("bl _panicky", clobber_abi("C"), options(may_unwind)) };
     }))
     .expect_err("expected a panic");
     assert_eq!(*flag, false);

src/test/ui/asm/x86_64/may_unwind.rs

@@ -24,7 +24,7 @@ fn main() {
     let flag = &mut true;
     catch_unwind(AssertUnwindSafe(|| {
         let _foo = Foo(flag);
-        unsafe { asm!("call panicky", options(may_unwind)) };
+        unsafe { asm!("call panicky", clobber_abi("C"), options(may_unwind)) };
     }))
     .expect_err("expected a panic");
     assert_eq!(*flag, false);