Port edab9a20

Original Commit Message:

    and TurboAssembler. Instead of listing all the different combinations
    of arguments (which is one more now, temporarily), just forward all
    arguments down via MacroAssembler and TurboAssembler to
    TurboAssemblerBase.
    Interestingly, this requires more specific types sometimes (int instead
    of size_t), since further down the forwarding chain, the compiler does
    not recognize any more that the value is a constant, and emits a
    warning about a possibly truncating implicit conversion.

R=clemensh@chromium.org, joransiu@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: I6dddc58b81d020570087393158f4ad0f37efa9ce
Reviewed-on: https://chromium-review.googlesource.com/c/1417379Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#58889}