swift234

IRGen: Bitcast dtor arguments to RefCountedPtr.
In the SIL for a destructor I emit a call to the base class destructor. Although destructors show up in SIL as their decl type T -> (), internally, they all share an LLVM function type void (%swift.refcounted). If an ApplyInst applies to a destructor, bitcast its argument.

Swift SVN r3875