del userdata part

hc

2023-03-07 b7c0d7ef5080a876d1e2a044d0a51dcb0e0bcf1e

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#include "tree.def"
END_OF_BASE_TREE_CODES
#include "c-family/c-common.def"
#include "ada/gcc-interface/ada-tree.def"
#include "cp/cp-tree.def"
#include "d/d-tree.def"
#include "objc/objc-tree.def"