Adjust directive order and add needs-threads

Signed-off-by: xizheyin <[email protected]>

Author: xizheyin

tests/ui/test-attrs/test-should-panic-failed-show-span.rs

@@ -1,9 +1,11 @@
+//@ no-prefer-dynamic
+//@ compile-flags: --test
+//@ run-flags: --test-threads=1
 //@ run-fail
 //@ check-run-results
-//@ compile-flags: --test
 //@ exec-env:RUST_BACKTRACE=0
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
-//@ run-flags: --test-threads=1
+//@ needs-threads
 
 #[test]
 #[should_panic]

tests/ui/test-attrs/test-should-panic-failed-show-span.run.stdout

@@ -10,19 +10,19 @@ test should_panic_with_substring_panics_with_non_string_value - should panic ...
 failures:
 
 ---- should_panic_with_any_message_does_not_panic stdout ----
-note: test did not panic as expected at $DIR/test-should-panic-failed-show-span.rs:22:4
+note: test did not panic as expected at $DIR/test-should-panic-failed-show-span.rs:24:4
 ---- should_panic_with_message_does_not_panic stdout ----
-note: test did not panic as expected at $DIR/test-should-panic-failed-show-span.rs:28:4
+note: test did not panic as expected at $DIR/test-should-panic-failed-show-span.rs:30:4
 ---- should_panic_with_substring_panics_with_incorrect_string stdout ----
 
-thread 'should_panic_with_substring_panics_with_incorrect_string' panicked at $DIR/test-should-panic-failed-show-span.rs:35:5:
+thread 'should_panic_with_substring_panics_with_incorrect_string' panicked at $DIR/test-should-panic-failed-show-span.rs:37:5:
 ZOMGWTFBBQ
 note: panic did not contain expected string
       panic message: `"ZOMGWTFBBQ"`,
  expected substring: `"message"`
 ---- should_panic_with_substring_panics_with_non_string_value stdout ----
 
-thread 'should_panic_with_substring_panics_with_non_string_value' panicked at $DIR/test-should-panic-failed-show-span.rs:41:5:
+thread 'should_panic_with_substring_panics_with_non_string_value' panicked at $DIR/test-should-panic-failed-show-span.rs:43:5:
 Box<dyn Any>
 note: expected panic with string value,
  found non-string value: `TypeId(0x56ced5e4a15bd89050bb9674fa2df013)`

tests/ui/test-attrs/test-should-panic-failed-show-span.stderr

@@ -1,5 +1,5 @@
 warning: panic message is not a string literal
-  --> $DIR/test-should-panic-failed-show-span.rs:41:12
+  --> $DIR/test-should-panic-failed-show-span.rs:43:12
    |
 LL |     panic!(123);
    |            ^^^