This CL provides a generic way to prepare a builtin call: The
{PrepareBuiltinCall} takes the builtin signature for 64-bit systems,
the CallDescriptor, and a Vector of VarStates for the parameters, and
moves all parameters to their correct place, which is either in a
register or on the stack.

To test the new code this CL adjusts the implementation of AtomicWait
to use PrepareBuiltinCall. Thereby AtomicWait is now also supported
on 32-bit platforms, including ia32.

R=clemensb@chromium.org

Bug: v8:10108, v8:10281
Change-Id: Ia8589166310ea2e8442531b4ed20db62d7b4aff0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2108554
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66810}