ClosureLifetimeFixup: Remove copy of borrowed move-only nonescaping captures when possible.

SILGen introduces a copy of the capture, because the semantics of escaping partial_apply's
requires the closure to take ownership of the parameters. We don't know when a closure is
strictly nonescaping or its final lifetime until ClosureLifetimeFixup runs, but that replaces
the consume of the copy with a borrow of the copy normally, hoping later passes fix it up.
We can't wait that long for move-only types, which can't be copied, so try to remove the
copy up front when the copy lives long enough and has no interfering uses other than the
partial_apply. rdar://110137169

include/swift/SILOptimizer/Utils/InstOptUtils.h

@@ -289,7 +289,9 @@ void insertDestroyOfCapturedArguments(
     SILLocation loc = RegularLocation::getAutoGeneratedLocation());
 
 void insertDeallocOfCapturedArguments(PartialApplyInst *pai,
-                                      DominanceInfo *domInfo);
+    DominanceInfo *domInfo,
+    llvm::function_ref<bool(SILValue)> shouldInsertDestroy =
+      [](SILValue arg) -> bool { return true; });
 
 /// This iterator 'looks through' one level of builtin expect users exposing all
 /// users of the looked through builtin expect instruction i.e it presents a