"always set" bit mask on IntegerStamps
small JavaDoc
do not constant fold identity hash codes in AOT
add bitwise "not" operation
remove unused node

--HG--
extra : rebase_source : d36acd2809e827a20d1981469b3bcf0bd96b440e
remove debug code in StampTool
removed Stamp parameter of BeginNode.anchor node intrinsic
spelling fix

--HG--
rename : graal/com.oracle.graal.jtt/src/com/oracle/graal/jtt/optimize/ConditionalEliminiation01.java => graal/com.oracle.graal.jtt/src/com/oracle/graal/jtt/optimize/ConditionalElimination01.java
rename : graal/com.oracle.graal.jtt/src/com/oracle/graal/jtt/optimize/ConditionalEliminiation02.java => graal/com.oracle.graal.jtt/src/com/oracle/graal/jtt/optimize/ConditionalElimination02.java
fix incorrect lower bound in StampTool
.hgignore: buildbot client config dir

--HG--
extra : rebase_source : 74212fff9dfeb3eaa25a556f10483a30d5c4c5b2
extra : amend_source : 123888a7cbfbe461de2fc26ce8ebf024023f2006
changed unittest command to remove use of '@' character. The format is now: mx unittest [VM options] [test filters...]
Merge
Merge.
Merge.
LoewringPhase: remove (weird) dead code

--HG--
extra : amend_source : c64fbcd9056a10c51331867e5a5643ef827da61a
added suppression filter so that long help messages for Options can be supported without triggering Checkstyle errors in generated sources
more javadoc for debug framework
added capability for embedding new lines in lengthy option help messages
replaced PerThreadDebugValues, SummarizeDebugValues and SummarisePerPhase options with DebugValueSummary option
omit printing of scopes without any non-zero nested debug values
normalized the command line interface for the dacapo, scaladacapo, specjvm2008, specjbb2005 and specjbb2013 commands
specjbb*: mx <command> [VM options] ["--" [<benchmark options>]]
others: mx <command> [VM options] benchmarks...|"all" [<benchmark options>]