Fix ConversionPoint.__repr__ on objects that does not have __qualname__

src/breakshaft/models.py

@@ -31,7 +31,17 @@ class ConversionPoint:
         return hash((self.fn, self.injects, self.requires))
 
     def __repr__(self):
-        return f'({",".join(map(str, self.requires))}) -> {self.injects.__qualname__}: {self.fn.__qualname__}'
+        if '__qualname__' in dir(self.injects):
+            injects_name = self.injects.__qualname__
+        else:
+            injects_name = str(self.injects)
+
+        if '__qualname__' in dir(self.fn):
+            fn_name = self.fn.__qualname__
+        else:
+            fn_name = str(self.fn)
+
+        return f'({",".join(map(str, self.requires))}) -> {injects_name}: {fn_name}'
 
     @property
     def fn_args(self) -> list[tuple[str, type]]: