java: JVM_CONSTANT_String parsing

Signed-off-by: Pekka Enberg <penberg@kernel.org>
java: JVM_CONSTANT_Long parsing

Signed-off-by: Pekka Enberg <penberg@kernel.org>
java: JVM_CONSTANT_InterfaceMethodref parsing

Signed-off-by: Pekka Enberg <penberg@kernel.org>
interp: getstatic

Signed-off-by: Pekka Enberg <penberg@kernel.org>