8042727: nsk/jdb/unwatch/unwatch001 crash in InstanceKlass::methods_do(void (*)(Method*))
Summary: Only walk methods in instanceklass if the class is loaded
Reviewed-by: dholmes, fparain
os_family = linux
arch = ppc
arch_model = ppc_64
os_arch = linux_ppc
os_arch_model = linux_ppc_64
lib_arch = ppc64
compiler = gcc
gnu_dis_arch = ppc64
sysdefs = -DLINUX -D_GNU_SOURCE -DPPC64