Saleem Abdulrasool 0314bb1dc2 Basic: guard against nullptr for env ...

`env` is a default'ed parameter.  In some cases it may be passed a `nullptr`,
which is not a valid parameter to `llvm::toStringRefArray`.  Guard against this
case.  This allows the swift compiler to work again on Windows!

2018-09-04 11:48:51 -07:00

1.3 KiB

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