add missing final to INTERIOR_MATCH
add contains to NodeWorkList
remove useless override
fix help message
use InvokeKind.Special for array methods
notify changed when setting input to null
improve tracking of nodes to canonicalize after inlining
Fold nodes with alwaysNull stamp into constant.

--HG--
extra : rebase_source : bd67232904a2c41170c55b961dc83671e9676ee4
Remove obsolete comments.

--HG--
extra : amend_source : eea998d85082154f2ffffba8d84270d259511cfd
Fix for debug check abort handling in implicit exception handler

--HG--
extra : rebase_source : 21ddc773df06fa11c794f201675a40b447d69336
CIPrintCompilerName: compiler name should be printed on supplied stream

--HG--
extra : rebase_source : 9357a4075f98f541bc82f1c7444d536ac71971dd
Truffle/Instrumentation:  add method   boolean ExecutionContext.hasProbe(SourceSection)
Add an ability to specify the signature of a C/C++ foreign function in HotSpotVMConfig and get the full symbol string; add a couple of convenience getters and setters for stubs with foreign call linkage.
canonicalize LoadMethodNodes
use receiver type in findUniqueConcreteMethod
don't allow blocking compile requests from the compiler thread