Fix test failures caused by merge race (#10925)

test-data/unit/check-isinstance.test

@@ -2377,19 +2377,19 @@ class B:
 
     def t1(self) -> None:
         if isinstance(self, A1):
-            reveal_type(self)           # N: Revealed type is '__main__.<subclass of "A1" and "B">'
+            reveal_type(self)           # N: Revealed type is "__main__.<subclass of "A1" and "B">"
             x0: Literal[0] = self.f()   # E: Incompatible types in assignment (expression has type "Literal[1]", variable has type "Literal[0]")
             x1: Literal[1] = self.f()
 
     def t2(self) -> None:
         if isinstance(self, (A0, A1)):  # E: Subclass of "B" and "A0" cannot exist: would have incompatible method signatures
-            reveal_type(self)           # N: Revealed type is '__main__.<subclass of "A1" and "B">1'
+            reveal_type(self)           # N: Revealed type is "__main__.<subclass of "A1" and "B">1"
             x0: Literal[0] = self.f()   # E: Incompatible types in assignment (expression has type "Literal[1]", variable has type "Literal[0]")
             x1: Literal[1] = self.f()
 
     def t3(self) -> None:
         if isinstance(self, (A1, A2)):
-            reveal_type(self)           # N: Revealed type is 'Union[__main__.<subclass of "A1" and "B">2, __main__.<subclass of "A2" and "B">]'
+            reveal_type(self)           # N: Revealed type is "Union[__main__.<subclass of "A1" and "B">2, __main__.<subclass of "A2" and "B">]"
             x0: Literal[0] = self.f()   # E: Incompatible types in assignment (expression has type "Union[Literal[1], Literal[2]]", variable has type "Literal[0]")
             x1: Literal[1] = self.f()   # E: Incompatible types in assignment (expression has type "Union[Literal[1], Literal[2]]", variable has type "Literal[1]")