LifetimeDependenceScopeFixup: extend store_borrow allocations
Extend temporary allocations (sink dealloc_stacks) initialized by a store_borrow
across lifetime dependent uses.
Fixes rdar://143159873 ([nonescapable] extend rvalue lifetimes when they are the source of a dependency)
(cherry picked from commit 288cef1532ed9a0e6ea1bd89c62cba0f44541ac1)
