Registers a new stack memory range with Valgrind.
Wraps `VALGRIND_STACK_REGISTER`. This informs Valgrind that the memory range
from `lowest` to `highest` functions as a unique stack. It returns a
[`StackId`](StackId) used to identify this range in subsequent calls.
# Reliability Warning
This client request is unreliable and best avoided if possible.
## Note
Requires Valgrind **3.0** or higher.