Merge

8007762: Rename a bunch of methods in size policy across collectors Summary: Rename: compute_generations_free_space() = compute_eden_space_size() + compute_old_gen_free_space(); update related logging messages Reviewed-by: jmasa, johnc, tschatzl, brutisso Contributed-by: tamao <tao.mao@oracle.com>

8015007: Incorrect print format in error message for VM cannot allocate the requested heap Summary: Correct the wrong print format in error message for VM cannot allocate the requested heap; and clean up the error message call in check_alignment() Reviewed-by: brutisso, tschatzl Contributed-by: tamao <tao.mao@oracle.com>