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

8036986: Test should check that correctly type is returned running with optimistic. If optimistic assumption was wrong we should get the right one. Summary: This uses the inspection framework for generated code to ensure optimisim. Reviewed-by: attila, lagergren Contributed-by: matherey.nunez@oracle.com

8037177: -Dnashorn.optimistic should be enabled by default, meaning that it has to be explicitly set to false to run with the jdk 8 style conservative types Summary: This will be the new default setting, so the explicit flag should be removed, and instead reverse checked for explicitly DISABLED optimistic types. In the future, we might remove the flag altogether. Reviewed-by: attila, hannesw