fix: non-canonical implementation of partial_cmp in an Ord type.

Author: plusvic

lib/src/types/func.rs

@@ -247,7 +247,7 @@ impl Ord for FuncSignature {
 
 impl PartialOrd for FuncSignature {
     fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
-        Some(self.mangled_name.as_str().cmp(other.mangled_name.as_str()))
+        Some(self.cmp(other))
     }
 }