PPC: [Interpreter] Add support for JS calls.

PPC: [Interpreter] Add support for JS calls.

Port e7fb233946b990ecbbbd76cc6529f62bd5da64e3

Original commit message:
    Adds support for JS calls to the interpreter. In order to support
    calls from the interpreter, the PushArgsAndCall builtin is added
    which pushes a sequence of arguments onto the stack and calls
    builtin::Call.

    Adds the Call bytecode.

R=rmcilroy@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, dstence@us.ibm.com
BUG=v8:4280
LOG=N

Committed: https://crrev.com/b6f673987f03667994b6918c89177f6a6c1c52c2
Cr-Commit-Position: refs/heads/master@{#30721}

[michael_dawson, 2015-09-14 18:59:03]

On 2015/09/14 18:55:39, mtbrandyberry wrote:
lgtm

[MTBrandyberry, 2015-09-14 19:00:25]

The CQ bit was checked by mbrandy@us.ibm.com

[commit-bot: I haz the power, 2015-09-14 19:00:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1345543002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1345543002/1

[commit-bot: I haz the power, 2015-09-14 23:15:33]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-14 23:15:52]

Patchset 1 (id:??) landed as
https://crrev.com/b6f673987f03667994b6918c89177f6a6c1c52c2
Cr-Commit-Position: refs/heads/master@{#30721}