Reorganize Test Headers

Author: veera-sivarajan

tests/ui/consts/const-eval/stable-metric/ctfe-simple-loop.rs

@@ -1,9 +1,10 @@
 //@ check-pass
 //@ revisions: warn allow
+//@ compile-flags: -Z tiny-const-eval-limit
+
 #![cfg_attr(warn, warn(long_running_const_eval))]
 #![cfg_attr(allow, allow(long_running_const_eval))]
 
-//@ compile-flags: -Z tiny-const-eval-limit
 const fn simple_loop(n: u32) -> u32 {
     let mut index = 0;
     while index < n {

tests/ui/consts/const-eval/stable-metric/evade-deduplication-issue-118612.rs

@@ -1,8 +1,8 @@
 //@ check-pass
+//@ compile-flags: -Z tiny-const-eval-limit -Z deduplicate-diagnostics=yes
 
 #![allow(long_running_const_eval)]
 
-//@ compile-flags: -Z tiny-const-eval-limit -Z deduplicate-diagnostics=yes
 const FOO: () = {
     let mut i = 0;
     loop {