IRGen: Try to fix taskCreate APIs on 32bit archs

Author: aschwaighofer

lib/IRGen/IRGenModule.cpp

@@ -621,7 +621,7 @@ IRGenModule::IRGenModule(IRGenerator &irgen,
   AsyncFunctionPointerPtrTy = AsyncFunctionPointerTy->getPointerTo(DefaultAS);
   SwiftTaskPtrTy = SwiftTaskTy->getPointerTo(DefaultAS);
   SwiftAsyncLetPtrTy = Int8PtrTy; // we pass it opaquely (AsyncLet*)
-  SwiftTaskOptionRecordPtrTy = Int64Ty; // Builtin.RawPointer? that we get as (TaskOptionRecord*)
+  SwiftTaskOptionRecordPtrTy = SizeTy; // Builtin.RawPointer? that we get as (TaskOptionRecord*)
   SwiftTaskGroupPtrTy = Int8PtrTy; // we pass it opaquely (TaskGroup*)
   ExecutorFirstTy = SizeTy;
   ExecutorSecondTy = SizeTy;