Port f9367847
Port bf782ec5

Original Commit Message:

    We can share almost all of the architecture-specific builtin code with super-call-with-spread.

    Info to port-writers: The code in CheckSpreadAndPushToStack has changed slightly
    from what was in Generate_ConstructWithSpread, in that we take the length of the
    spreaded parameters from the JSArray rather than the FixedArray backing store.

R=petermarshall@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=v8:5511
LOG=N

Review-Url: https://codereview.chromium.org/2655043004
Cr-Commit-Position: refs/heads/master@{#42708}