RFR(L): 8031321 Support Intel bit manipulation instructions

[Igor Veresov]

This change adds support for BMI1 instructions on x86 (supported on AMD Piledriver and Intel Haswell).
The changes in the matcher.cpp are kind of a temporary hack to workaround the inability to describe DAGs in ADL. I’ll address that problem properly a bit later (we need this change to land in 8u20).

I’m also using Rickard’s changes in type.hpp that are not quite in the repo yet. 

Webrev: http://cr.openjdk.java.net/~iveresov/8031321/webrev.00/

Testing: jprt, jtreg, ctw, the new regtest (verified that the instructions are generated and all).

igor