Remove some useless short casts, synchronize deoptimization.hpp with HotSpotMetaAccessProvider
nmethod.cpp: s/unknwon/unknown/
Delete accidentially commited files.
made external node ids stable across graph dumps to the IGV
Make it possible to run counted loop detection on a single loop.
Implement support for passing byte arguments in Java methods to be compiled to PTX.
Fix incorrect .reg and .param declarations in PTX kernels.
Refactor and clean up PTXAssembler to PTXMacroAssembler.
unlink mx_graal.py
mx: rename commands.py as mx_graal.py

--HG--
rename : mx/commands.py => mx/mx_graal.py
Move FixedValueAnchorNode out of hotspot dependent project.

--HG--
rename : graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/FixedValueAnchorNode.java => graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/FixedValueAnchorNode.java
don't sign extend integer laods
moved raw memory TLAB allocation routine into NewInstanceStub and unsnippetized it
moved options guiding when to use profile info in compiled type checks to InstanceOfSnippets
s/commands/mx_graal/ in mx/sanitycheck.py