swift234

SILGen: Claim orig and subst parameter clauses in sync when emitting calls.

This fixes bugs when we call the result of generic methods that return functions; we were advancing through orig types of the signature but not formal ones, causing us to fall out of sync when we exhausted curry levels of the original function and started calling function-typed results. Fixes rdar://problem/18143223 and rdar://problem/18495979, maybe others too.

Swift SVN r22418