Follow-up to some recent commits that fixed issues around
jasmine.anything() matching. This simply adds some extra tests that
exercise usage of Symbols with jasmine.anything() and as Map keys.
The previous Map equality code was assuming that the set of keys would
be identical between the two Maps. This change adds insertion-order
tracking for each key with its corresponding key. If one of the two keys
is an asymmetric equality obj, the keys are eq()'d, and if it succeeds,
the corresponding values are compared. Otherwise, the "main" key is
looked up directly in the other object; this is to prevent
similar-looking obj keys with different obj identities from comparing
equal.
Fixes#1432.
The original asymmetric matcher code for Any did not work with symbols
since `symbolInstance instanceof Symbol` is actually `false` (but,
`symbolInstance.constructor` is `Symbol). This simply adds an extra
clause that explicitly checks for symbol (if available) like the other
primitive types.
Also added some missing specs for other types, like Map, Set, etc.
Fixes#1431.
This allows custom equality testers to affect asymmetric matches.
This avoid suprises when combining addCustomEqualityTester with
objectContaining or arrayContaining.
Closes#1138
