8027043: Turn global accesses into MethodHandle.constant, with one chance of reassignment, e.g. x = value occuring once in the global scope is ok, twice is not. Reviewed-by: attila, sundar, jlaskey

8038416: Access to undefined scoped variables deoptimized too much Reviewed-by: jlaskey, lagergren

8038406: Testability: as a first step of moving loggers away from the process global space, the Debug object now supports logging POJOs from log entries as an event queue, which can be introspected from test scripts. This is way better than screen scraping brittle and subject-to-change log output. Reviewed-by: attila, hannesw, sundar

8038396: fix for the compiler expression evaluator to be more inquisitive about types Reviewed-by: hannesw, lagergren

8037534: Use scope types to determine optimistic types Reviewed-by: hannesw, lagergren

8038223: Symbol trace debug output takes time Reviewed-by: hannesw, lagergren

Merge

8037967: Broke the build, by commiting without saving the last review comment Reviewed-by: jlaskey, hannesw

8033334: Make sure that scope depth information is maintained in the RecompilableScriptFunctionDatas, to avoid unnecessary slow proto linkage when doing on demand compilation Summary: Compute RecompiledScriptFunctionDatas eagerly, annotate them with scope depth information and use them in recompilations. Reviewed-by: attila, hannesw, jlaskey

8037086: Check that deoptimizing recompilations are correct Reviewed-by: attila, lagergren