Summary: Use the gap also for a narrow oop field and a boxing object value.
Reviewed-by: coleenp, never

Summary: combine many scalar variables into a single enum-indexed array in SystemDictionary.
Reviewed-by: kvn

Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv
Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold

Summary: convert strings from Download Manager into native encoding in the VM
Reviewed-by: sbohne, never, phh, kamg, xlu