Avoid null checks on frame array accesses.
Merge.
Simplifications of OptimizedCallTarget.
Move Truffle compilations to background compilation thread.
Fix unused import.
Merge.
Fix checkstyle errors.
Introduce TraceTruffleInliningTree option.
Merge.
Merge.
Merge.
Merge.
Merge fixes.
Merge.
Merge fix.
Support more convert operations.
Remove UseNewCode from gate G1 verification run
Reorder commit allocation's node writes to account for deferred barriers
Fix unit tests
Enable deferred init barriers