SR-11902: Fixed code review issues

Author: kitaisreal

test/Sema/classes_equatable_hashable.swift

@@ -5,4 +5,4 @@ class Foo: Equatable {}
 
 class Bar: Hashable {} 
 // expected-error@-1 {{type 'Bar' does not conform to protocol 'Hashable'}} expected-note@-1 {{automatic synthesis of 'Hashable' is not supported for classes because of inheritance.}}
-// expected-error@-2 {{type 'Bar' does not conform to protocol 'Equatable'}} expected-note@-2 {{automatic synthesis of 'Equatable' is not supported for classes because of inheritance.}}
+// expected-error@-2 {{type 'Bar' does not conform to protocol 'Equatable'}} expected-note@-2 {{automatic synthesis of 'Equatable' is not supported for classes because of inheritance.}}