Summary: Make FreeChunk read markword instead of LSB in _klass pointer to indicate that it's a FreeChunk for compressed oops.
Reviewed-by: ysr, jmasa

Summary: back out sa-related changes to 6652736, use concrete expressions for WKK names in the SA
Reviewed-by: never, sundar

Summary: Forward port of Yumin's fix for 6670684 from HSX-11; Yumin verified the port was correct.
Reviewed-by: dcubed

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