Auto merge of rust-lang#101959 - Xaeroxe:clamp-better-assert, r=ChrisDenton

Add better assert messages for f32/f64 clamps

Author: bors

library/core/src/num/f32.rs

@@ -1391,7 +1391,7 @@ impl f32 {
     #[stable(feature = "clamp", since = "1.50.0")]
     #[inline]
     pub fn clamp(mut self, min: f32, max: f32) -> f32 {
-        assert!(min <= max);
+        assert!(min <= max, "min > max, or either was NaN. min = {min:?}, max = {max:?}");
         if self < min {
             self = min;
         }

library/core/src/num/f64.rs

@@ -1389,7 +1389,7 @@ impl f64 {
     #[stable(feature = "clamp", since = "1.50.0")]
     #[inline]
     pub fn clamp(mut self, min: f64, max: f64) -> f64 {
-        assert!(min <= max);
+        assert!(min <= max, "min > max, or either was NaN. min = {min:?}, max = {max:?}");
         if self < min {
             self = min;
         }