Slava Pestov 0cbbd9ae5d Sema: Don't set 'validation started' bit on ParamDecls from validateDecl() ...

Otherwise, when the horrible ExprCleanser comes along, it will set
the interface type of the ParamDecl to nullptr. However there is
no way to clear the 'validation started' bit, so the next time
validateDecl() is called on this ParamDecl we will just return,
causing crashes downstream when callers expect it to already have
an interface type set.

Fixes <rdar://problem/38189778> and possibly some instances of
<rdar://problem/36434823>.

2018-04-25 18:04:58 -07:00

75 KiB

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