[turbofan] Turn JSToBoolean and JSUnaryNot into pure operators.

Also fix the pushing of JSToBoolean into Phis and generalize it to
also include pushing into Selects.

TEST=cctest,unittests

Review URL: https://codereview.chromium.org/792463003

Cr-Commit-Position: refs/heads/master@{#25718}
Temporarily restore make dependencies

We will remove dependencies in about a week again.

BUG=none
R=machenbach@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/733203008

Cr-Commit-Position: refs/heads/master@{#25719}
Also ignore NDEBUG for chromium code

BUG=none
R=machenbach@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/792513002

Cr-Commit-Position: refs/heads/master@{#25720}
Really enable DEBUG code on android unless full debug is specified

R=machenbach@chromium.rg
LOG=n
BUG=none
NOTRY=true

Review URL: https://codereview.chromium.org/786203003

Cr-Commit-Position: refs/heads/master@{#25721}
[x86] Disable invalid checked load/store optimization.

TEST=mjsunit/compiler/regress-lena
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/784153006

Cr-Commit-Position: refs/heads/master@{#25722}