update message to use __init__

Author: noobCodec

mypy/messages.py

@@ -1123,7 +1123,6 @@ def no_variant_matches_arguments(
                 context,
                 code=code,
             )
-
         self.note(f"Possible overload variant{plural_s(len(overload.items))}:", context, code=code)
         for item in overload.items:
             self.note(pretty_callable(item, self.options), context, offset=4, code=code)
@@ -3015,7 +3014,14 @@ def [T <: int] f(self, x: int, y: T) -> None
             if s:
                 s = ", " + s
             s = first_arg + s
-        s = f"{tp.name.split()[0]}({s})"  # skip "of Class" part
+        if (
+            isinstance(definition, FuncDef)
+            and hasattr(definition, "name")
+            and definition.name == "__init__"
+        ):
+            s = f"{definition.name}({s})"
+        else:
+            s = f"{tp.name.split()[0]}({s})"  # skip "of Class" part
     else:
         s = f"({s})"
 

test-data/unit/check-serialize.test

@@ -312,8 +312,8 @@ class A:
 [out2]
 tmp/a.py:2: error: No overload variant of "A" matches argument type "object"
 tmp/a.py:2: note: Possible overload variants:
-tmp/a.py:2: note:     def A(self, x: int) -> A
-tmp/a.py:2: note:     def A(self, x: str) -> A
+tmp/a.py:2: note:     def __init__(self, x: int) -> A
+tmp/a.py:2: note:     def __init__(self, x: str) -> A
 tmp/a.py:7: error: No overload variant of "__init__" of "A" matches argument type "object"
 tmp/a.py:7: note: Possible overload variants:
 tmp/a.py:7: note:     def __init__(self, x: int) -> None