Rintaro Ishizaki df10afd1a2 [Parse] Discriminate local variables ...

Set local discriminator for all local `VarDecl`s. Otherwise, they cannot
be discriminated with USRs. This change is needed for rename refactoring which
uses USR for discrimiating variable names.

https://bugs.swift.org/browse/SR-7205,
rdar://problem/34701880

2018-05-11 15:34:42 +09:00

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