8019340: varargs-related warnings are meaningless on signature-polymorphic methods such as MethodHandle.invokeExact Summary: Disable certain varargs warnings when compiling polymorphic signature calls Reviewed-by: jjg

os_family = bsd

arch = x86

arch_model = x86_64

os_arch = bsd_x86

os_arch_model = bsd_x86_64

lib_arch = amd64

compiler = gcc

sysdefs = -D_ALLBSD_SOURCE -D_GNU_SOURCE -DAMD64