[AddressLowering] CallArgRewriter takes ApplySite.

Rather than being able to handle only to FullApplySites, it now handles
PartialApplyInsts as well.

Author: nate-chandler

lib/SILOptimizer/Mandatory/AddressLowering.cpp

@@ -1714,13 +1714,13 @@ namespace {
 /// object arguments with address-type arguments.
 class CallArgRewriter {
   AddressLoweringState &pass;
-  FullApplySite apply;
+  ApplySite apply;
   SILLocation callLoc;
   SILBuilder argBuilder;
   AddressMaterialization addrMat;
 
 public:
-  CallArgRewriter(FullApplySite apply, AddressLoweringState &pass)
+  CallArgRewriter(ApplySite apply, AddressLoweringState &pass)
       : pass(pass), apply(apply), callLoc(apply.getLoc()),
         argBuilder(pass.getBuilder(apply.getInstruction()->getIterator())),
         addrMat(pass, argBuilder) {}