annotate functions in tests

Author: elazarg

test-data/unit/check-classes.test

@@ -122,7 +122,7 @@ A().f = None # E: Cannot assign to a method
 [case testReferToInvalidAttribute]
 
 class A:
-    def __init__(self):
+    def __init__(self) -> None:
         self.x = object()
 a = None # type: A
 a.y

test-data/unit/check-inference.test

@@ -1403,7 +1403,7 @@ b[{}] = 1
 
 [case testInferDictInitializedToEmptyAndUpdatedFromMethod]
 map = {}
-def add():
+def add() -> None:
     map[1] = 2
 [builtins fixtures/dict.pyi]
 [out]

test-data/unit/check-modules.test

@@ -1312,7 +1312,7 @@ class A:
     def f(self) -> str: return 'foo'
 class B(A):
     def f(self) -> str: return self.x
-    def initialize(self): self.x = 'bar'
+    def initialize(self) -> None: self.x = 'bar'
 [out]
 
 

test-data/unit/check-statements.test

@@ -353,7 +353,7 @@ a @= 1  # E: Argument 1 to "__imatmul__" of "A" has incompatible type "int"; exp
 
 [case testInplaceSetitem]
 class A(object):
-    def __init__(self):
+    def __init__(self) -> None:
         self.a = 0
 
     def __iadd__(self, a):

test-data/unit/fixtures/list.pyi

@@ -26,7 +26,8 @@ class list(Generic[T]):
 
 class tuple(Generic[T]): pass
 class function: pass
-class int: pass
+class int:
+    def __add__(self, other: 'int') -> 'int': pass
 class float: pass
 class str: pass
 class bool(int): pass