Make JSTests ready for Android measurements.

This adds a common perf configuration for JSTests including
Classes, Collections, Iterators and Strings. This allows
the android test runner to handle subdirectories correctly
and to share the base.js resource in the parent directory.

The new json config has added resources configs for the
Android runner.

The perf runner's relative paths on the device are fixed as
well. Resources are only pushed on the configuration node
where they are specified. They are pushed to a dir on the
device that follows the same directory structure as on the
host. The binary is executed in the benchmark folder on the
device like on the host to allow relative path file
loading.

BUG=chromium:374740
LOG=n
TEST=python -m unittest run_perf_test
TBR=ulan@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/779923002

Cr-Commit-Position: refs/heads/master@{#25655}
[turbofan] Reduce context accesses during typed lowering.

TEST=unittests
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/776243002

Cr-Commit-Position: refs/heads/master@{#25656}
Do not embed function in DirectLoadGlobalFunctionPrototype.

BUG=v8:3629
LOG=N

Review URL: https://codereview.chromium.org/778673002

Cr-Commit-Position: refs/heads/master@{#25657}
[turbofan] Narrow upper bounds during typed lowering.

This is a temporary solution, which optionally narrows upper bounds of
nodes when changing the operator of a node.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/741503006

Cr-Commit-Position: refs/heads/master@{#25658}
Stage ES6 template literals

BUG=v8:3230
LOG=Y
R=dslomov@chromium.org, rossberg@chromium.org

Review URL: https://codereview.chromium.org/780603003

Cr-Commit-Position: refs/heads/master@{#25659}