Incorrect rejection of 'super !='

[eernstg]

The following co19 test stops with the compile-time error 'Error: '!=' cannot be called on super':

Language/12_Expressions/22_Equality_A01_t01.

According to 15.22, 'super != e' is equivalent to '!(super == e)', and the latter must be accepted during compilation and evaluated as described.

Note that the same issue arose for Area=VM (issue #1242), and it has been fixed there. There may be other cases mentioned in issue #1242 which are useful to consider at the same time.

[eernstg]

Same situation arises with the following co19 test:

Language/12_Expressions/22_Equality_A05_t01.

[johnniwinther]

Added Started label.

[johnniwinther]

Fixed by https://codereview.chromium.org//1152903003