tell miri to stop fake-inlining the test fn

Author: workingjubilee

tests/skip_inner_frames.rs

@@ -13,6 +13,7 @@ const ENABLED: bool = cfg!(all(
 ));
 
 #[test]
+#[inline(never)]
 fn backtrace_new_unresolved_should_start_with_call_site_trace() {
     if !ENABLED {
         return;
@@ -30,6 +31,7 @@ fn backtrace_new_unresolved_should_start_with_call_site_trace() {
 }
 
 #[test]
+#[inline(never)]
 fn backtrace_new_should_start_with_call_site_trace() {
     if !ENABLED {
         return;