RFR(L/XS) : 8222414 : bring googlemock v1.8.1

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev//8222414/webrev.01
> 21638 lines changed: 21628 ins; 0 del; 10 mod;

Hi all,

could you please review this patch which makes mocking framework from google test available for hotspot tests?

JBS: https://bugs.openjdk.java.net/browse/JDK-8222414
testing: tier1
webrevs:
 - http://cr.openjdk.java.net/~iignatyev//8222414/webrev.00
> 21605 lines changed: 21605 ins; 0 del; 0 mod; 
* moves gtest from test/fmw/gtest to test/fmw/gtest/googletest;
* adds only required (w/o build-aux, docs, make, msvc, scripts, tests directories and make related files) source of gmock to test/fmw/gtest/googlemock;

- http://cr.openjdk.java.net/~iignatyev//8222414/webrev.0-1
> 33 lines changed: 23 ins; 0 del; 10 mod; 

* makes necessary changes in makefiles
* calls gmock framework init function
* works around the conflict b/w :testing::internal::Log function defined by gmock and Log macro defined by hotspot 

- http://cr.openjdk.java.net/~iignatyev//8222414/webrev.01
> 21638 lines changed: 21628 ins; 0 del; 10 mod;

all the changes together


thanks,
-- Igor