[inlining] better distinguishable name, GraphInfo becomes CallsiteHolder
[inlining] moving CallsiteHolder to upper level

--HG--
extra : amend_source : 947c4eb79bf9f26ac75c16a94d106ab0895dd7ce
[inlining] moved InliningPolicy to newly created package inlining.policy
[inlining] moved AbstractInliningPolicy to inlining.policy
[inlining] moved GreedyInliningPolicy to inlining.policy
[inlining] access levels in AbstractInliningPolicy back to what they were
[inlining] moved InlineEverythingPolicy to inlining.policy
[inlinin] assertion-aided code understanding at work
[inlining] preparing to extract loop body from InliningPhase.run to InliningData
[inlining] part 2, preparing to move tryToInline() and doInline()
[inlining] moved doInline() to InliningData, as prereq for upcoming steps
[inlining] moved tryToInline() to InliningData, as prereq for upcoming steps
[inlining] extracted loop-body, for now as InliningPhase.moveForward()
[inlining] readability improvements for (by now extracted) loop-body
[inlining] side-effects moved out from just-extracted method
[inlining] working the InliningData stack now done by InliningData.moveForward()
[inlining] start of another refactoring trail
[inlining] grouping inlining-space walking-related classes in package walker
[inlining] moved helper class MethodInvocation to package inlining.walker
[inlining] moved class InliningData to package with related classes