This bumps the engine-wide limit for generated machine code from 1GB to
2GB. This will allow compiling (and debugging) bigger modules, as they
occur particularly in the debugging use case because the module will be
unoptimized then.

The limit per allocated code space is left at 1024MB (1GB), so a module
will need to allocate two separate code spaces to make use of the full
2GB code space.

R=ecmziegler@chromium.org

Bug: chromium:1117033, chromium:1114093, chromium:1107649, chromium:1111266
Change-Id: Iab95b3130cbacc21ba078bf0d4ee2d6cd121d675
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2372604Reviewed-by: Emanuel Ziegler <ecmziegler@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69548}