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

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

8073792: assert((get_length_if_constant(phase) == -1) == !ary_src->size()->is_con()) failed: inconsistent
Summary: assert in array copy code broken when array size becomes known during igvn
Reviewed-by: kvn, vlivanov

6912521: System.arraycopy works slower than the simple loop for little lengths
Summary: convert small array copies to series of loads and stores
Reviewed-by: kvn, vlivanov