Make codereview.settings ready for git.

BUG=410721
LOG=n
R=agable@chromium.org, tandrii@chromium.org

Review URL: https://codereview.chromium.org/699153003

Cr-Commit-Position: refs/heads/master@{#25305}
Whitespace change for the v8 git migration.

Cr-Commit-Position: refs/heads/master@{#25306}
Switch release scripts to pure git.

This removes all svn features from the release scripts.

This also fixes a bug in commit position retrieval.

BUG=chromium:410721
LOG=n
R=tandrii@chromium.org
TBR=tandrii@chromium.org
TEST=script_test.py

Review URL: https://codereview.chromium.org/716153002

Cr-Commit-Position: refs/heads/master@{#25307}
Remove unused dot_for and dot_result strings from heap.h

These appear to have simply been missed in r21972

R=marja@chromium.org

Review URL: https://codereview.chromium.org/698483004

Cr-Commit-Position: refs/heads/master@{#25308}
Re-add dot_result_string to heap.h after 5f7b24f7b42

Failed to notice it was still being used in a DCHECK, so removing
it broke the debug build.

TBR=marja@chromium.org

Review URL: https://codereview.chromium.org/720793004

Cr-Commit-Position: refs/heads/master@{#25309}
Remove dead AST code in For and While statements

R=marja@chromium.org

Review URL: https://codereview.chromium.org/717923003

Cr-Commit-Position: refs/heads/master@{#25310}