message: test/lang/swift/expression/static seems to be passing on macOS, removing xfail
diff: @@ -27,7 +27,6 @@ class TestSwiftExpressionsInClassFunctions(TestBase):
  @decorators.swiftTest
  @decorators.swiftTest
  #@unittest2.skip("bugs.swift.org/SR-798")
  - @decorators.expectedFailureAll(bugnumber="rdar://33857571")
  def test_expressions_in_class_functions(self):
  """Test expressions in class func contexts"""
  self.build()
  