Doug Gregor 192234415d [AST] Store SubstitutionMaps in ConcreteDeclRef and Witness data structures. ...

Replace two prominent uses of SubstitutionList, in ConcreteDeclRef and
Witness, with SubstitutionMap. Deal with the myriad places where we
now have substitution maps and need substitution lists (or vice versa)
caused by this change.

Overall, removes ~50 explicit uses of SubstitutionList (of ~400).

2018-05-02 13:38:14 -07:00

88 KiB

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