Faster equality compare

Author: orlp

library/core/src/panic/location.rs

@@ -49,7 +49,9 @@ pub struct Location<'a> {
 #[stable(feature = "panic_hooks", since = "1.10.0")]
 impl PartialEq for Location<'_> {
     fn eq(&self, other: &Self) -> bool {
-        self.file() == other.file() && self.line == other.line && self.col == other.col
+        // Compare col / line first as they're cheaper to compare and more likely to differ,
+        // while not impacting the result.
+        self.col == other.col && self.line == other.line && self.file() == other.file()
     }
 }