Make assembler not include the entire compiler.

Make assembler not include the entire compiler.

This removes the include of compiler.h from all our assemblers, which
was only needed for the SourcePosition class.

R=jkummerow@chromium.org

Committed: https://crrev.com/83a3fc7e7fe5575c5acf64a92a2f6388d4e0d017
Cr-Commit-Position: refs/heads/master@{#31157}

[Michael Starzinger, 2015-10-07 16:18:28]

mstarzinger@chromium.org changed reviewers:
+ bmeurer@chromium.org

[Jakob Kummerow, 2015-10-07 16:55:14]

jkummerow@chromium.org changed reviewers:
+ jkummerow@chromium.org

[Jakob Kummerow, 2015-10-07 16:55:15]

Beautiful! LGTM.

[Michael Starzinger, 2015-10-07 16:56:04]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2015-10-07 16:56:16]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1397493002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1397493002/1

[commit-bot: I haz the power, 2015-10-07 16:57:19]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-07 16:57:39]

Patchset 1 (id:??) landed as
https://crrev.com/83a3fc7e7fe5575c5acf64a92a2f6388d4e0d017
Cr-Commit-Position: refs/heads/master@{#31157}