RFR 7041262: VM_Version should be called instead of Abstract_VM_Version so that overriding works

[Harold David Seigel]

Hi,

Please review this fix for JDK-7041262.  The fix changes calls to 
Abstract_VM_Version functions to instead call VM_Version functions.  See 
details in the bug.

Open Webrev: 
http://cr.openjdk.java.net/~hseigel/bug_7041262/webrev/index.html

JBS Bug:  https://bugs.openjdk.java.net/browse/JDK-7041262

The fix was tested by running Mach5 tiers 1 and 2 tests and builds on 
Linux-x64, Windows, and Mac OS X, running tiers 3-5 tests on Linux-x64, 
and by running JCK-12 Lang and VM tests on Linux-x64.  I also did test 
builds on zero, minimal, and aarch64.

Thanks, Harold