PartialEvaluator: iterative version of expandTree

--HG--
extra : transplant_source : j%EB%C4%D5%25%25%95O%1A%A3%C4%9A%ED%05%069%208%9A%A1
split PiNode into PiNode and GuardedValueNode
change to GC verification during gate: run in product, add after-GC verification
Separate replacements for Truffle compilation

--HG--
extra : amend_source : bd511b1f268af9cf1595dd566b1ba7b89ddeb0b0
extra : transplant_source : 3%EA%D9%F7%A8%D0%B5%01%A73%23%10%A4ZV%DF%98%88%13%01
Fix bug in executeCompiledMethod interpreter stub.
Disable type check hints and type checked inlining for Truffle compiler.
Fix bug in canonicalization of non-compressed object pointers.
Merge.
made the primary suite detection logic a little more robust
GraalCompilerTest throws an error if code installation fails
fixed bug in ConditionalEliminationPhase (GRAAL-346)
Delete unused stub.
enable TailDuplication for MergeNodes without stateAfter
Slightly increase GraalNMethodSizeLimit and make it a product flag.
Add sanity check to avoid overwriting the reserved code buffer for very large methods.
Merge.