PPC/s390: [stubs] An easier way of defining a stub call interface descriptor.

PPC/s390: [stubs] An easier way of defining a stub call interface descriptor.

Port a2fef3af4b3ba5e973ce56dd454b8c77f00a4897

Original commit message:

    This CL introduces a DECLARE_DEFAULT_DESCRIPTOR macro that helps defining a
    CallInterfaceDescriptor in a cases where it is not important which registers
    to use for passing arguments. One can use such descriptors for new TurboFan stubs.

    HasPropertyDescriptor now uses the new machinery.

R=ishell@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N

Committed: https://crrev.com/9bba1494f403d35ac7e53779eb7706c01d9124ea
Cr-Commit-Position: refs/heads/master@{#36687}

[JaideepBajwa, 2016-06-02 15:07:11]

PTAL

[john.yan, 2016-06-02 15:08:50]

lgtm

[JaideepBajwa, 2016-06-02 15:10:48]

The CQ bit was checked by bjaideep@ca.ibm.com

[commit-bot: I haz the power, 2016-06-02 15:10:55]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2034773002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2034773002/1

[Igor Sheludko, 2016-06-02 15:13:00]

lgtm. Thanks!

[commit-bot: I haz the power, 2016-06-02 15:32:25]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-02 15:32:59]

Description was changed from

==========
PPC/s390: [stubs] An easier way of defining a stub call interface descriptor.

Port a2fef3af4b3ba5e973ce56dd454b8c77f00a4897

Original commit message:

    This CL introduces a DECLARE_DEFAULT_DESCRIPTOR macro that helps defining a
    CallInterfaceDescriptor in a cases where it is not important which registers
    to use for passing arguments. One can use such descriptors for new TurboFan
stubs.

    HasPropertyDescriptor now uses the new machinery.

R=ishell@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N
==========

to

==========
PPC/s390: [stubs] An easier way of defining a stub call interface descriptor.

Port a2fef3af4b3ba5e973ce56dd454b8c77f00a4897

Original commit message:

    This CL introduces a DECLARE_DEFAULT_DESCRIPTOR macro that helps defining a
    CallInterfaceDescriptor in a cases where it is not important which registers
    to use for passing arguments. One can use such descriptors for new TurboFan
stubs.

    HasPropertyDescriptor now uses the new machinery.

R=ishell@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N

Committed: https://crrev.com/9bba1494f403d35ac7e53779eb7706c01d9124ea
Cr-Commit-Position: refs/heads/master@{#36687}
==========

[commit-bot: I haz the power, 2016-06-02 15:33:00]

Patchset 1 (id:??) landed as
https://crrev.com/9bba1494f403d35ac7e53779eb7706c01d9124ea
Cr-Commit-Position: refs/heads/master@{#36687}