[inlining-2] renaming of an overloaded method
[inlining-2] make returned value explicit
[inlining-2] renaming logNotInlinedMethodAndReturnNull -> logNotInlinedInvoke
[inlining-2] make explicit the value returned by logNotInlinedInvoke()
do not assert for MergeNode in UseTrappingNullChecksPhase
[inlining-2] logNotInlinedMethod invoked only for side-effects not return value
[inlining-2] logInliningDecision, for side-effects not return value (1/2)
[inlining-2] logInliningDecision, for side-effects not return value (2/2)
small fix in GraphOrder.assertSchedulableGraph
[inlining-2] no guesswork about return value of logInlinedMethod (1/2)
[inlining-2] no guesswork about return value of logInlinedMethod (2/2)
[inlining-2] no guesswork at callsites about return value of logNotInlinedMethod
Merge
Never use the current node's stamp in ValueNode.inferStamp overrides.
Removed unused PhiNode.inferPhiStamp

--HG--
extra : rebase_source : 8c9a95ca5a683e4ad1aa9c4fcb345264a23308a6
fix NPE in CallSiteHolder
[inlining-3] readability of checkInvokeConditions() part 1 of 2
[inlining-3] readability of checkInvokeConditions() part 2 of 2

--HG--
extra : amend_source : e03fa8e7ccf057205c2e4aaee66c9a33f019f1b5
[inlining-4] start of refactoring trail, by the end shorter parameter lists
ConditionalNode's boolean materialization canonicalization needs to insert a convert

--HG--
extra : rebase_source : cfe2b4793027ac41caa4c12d091b4b4e1e92d415
[inlining-4] getAssumptionInlineInfo() becomes instance method of InliningData