Minor deduplication for tests macro

Author: ChaiTRex

library/core/tests/num/int_sqrt.rs

@@ -1,5 +1,5 @@
 macro_rules! tests {
-    ($($T:ident $isqrt_consistency_check_fn_macro:ident),+) => {
+    ($isqrt_consistency_check_fn_macro:ident : $($T:ident)+) => {
         $(
             mod $T {
                 $isqrt_consistency_check_fn_macro!($T);
@@ -230,5 +230,5 @@ macro_rules! unsigned_check {
     };
 }
 
-tests!(i8 signed_check, i16 signed_check, i32 signed_check, i64 signed_check, i128 signed_check);
-tests!(u8 unsigned_check, u16 unsigned_check, u32 unsigned_check, u64 unsigned_check, u128 unsigned_check);
+tests!(signed_check: i8 i16 i32 i64 i128);
+tests!(unsigned_check: u8 u16 u32 u64 u128);