8132919: Put compiler tests in packages
Reviewed-by: vlivanov, dpochepk
Contributed-by: igor.ignatyev@oracle.com

8156760: VM crashes if -XX:-ReduceInitialCardMarks is set
Summary: Fixed several compiler crashes with disabled ReduceInitialCardMarks.
Reviewed-by: roland, minqi, dlong, tschatzl, kvn

8076188: Optimize arraycopy out for non escaping destination
Summary: if the destination of an arraycopy is non escaping, the arraycopy may be optimized out
Reviewed-by: kvn, vlivanov

6700100: optimize inline_native_clone() for small objects with exact klass
Summary: optimize small instance clones as loads/stores
Reviewed-by: kvn, iveresov