Update multi-file test

Author: lucic71

tests/multi-file/extern_functions/out/refcount/extern_functions.rs

@@ -31,7 +31,7 @@ pub fn unrelated2_2() -> i32 {
 pub fn unrelated3_3() -> i32 {
     return 3;
 }
-pub fn helper_4(x: i32) -> i32 {
+pub fn helper_0(x: i32) -> i32 {
     let x: Value<i32> = Rc::new(RefCell::new(x));
     ({ unrelated1_1() });
     ({ unrelated2_2() });

tests/multi-file/extern_functions/out/unsafe/extern_functions.rs

@@ -33,7 +33,7 @@ pub unsafe fn unrelated2_2() -> i32 {
 pub unsafe fn unrelated3_3() -> i32 {
     return 3;
 }
-pub unsafe fn helper_4(mut x: i32) -> i32 {
+pub unsafe fn helper_0(mut x: i32) -> i32 {
     (unsafe { unrelated1_1() });
     (unsafe { unrelated2_2() });
     (unsafe { unrelated3_3() });