[HWASan] do not replace lifetime intrinsics with tagged address.

Quote from the LLVM Language Reference
  If ptr is a stack-allocated object and it points to the first byte of the
  object, the object is initially marked as dead. ptr is conservatively
  considered as a non-stack-allocated object if the stack coloring algorithm
  that is used in the optimization pipeline cannot conclude that ptr is a
  stack-allocated object.

By replacing the alloca pointer with the tagged address before this change,
we confused the stack coloring algorithm.

Reviewed By: eugenis

Differential Revision: https://reviews.llvm.org/D121835