prep for more constants

 - Add -z to print zero bytes instead of ...
 - avx+hsw will create 32-byte constants in .const,
   so we should disassemble those too, and align to 32 bytes.
 - The default _text section on Windows is 16-byte aligned,
   so we make a new one that's 32-byte aligned.

Change-Id: Icb2a962baa4c3735e98a992f2285eaf5cb1680fd
Reviewed-on: https://skia-review.googlesource.com/14364
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Herb Derby <herb@google.com>
3 files changed