Stop updating node type from NODE_STR to NODE_DSTR
This is a preparation for removing not_used members from STR NODE.
Once not_used members are removed from STR NODE, STR NODE is smaller than
DSTR NODE. Therefore allocate NODE_DSTR instead of reusing NODE_STR.
Stop updating node type from NODE_STR to NODE_DSTR
This is a preparation for removing not_used members from STR NODE.
Once not_used members are removed from STR NODE, STR NODE is smaller than
DSTR NODE. Therefore allocate NODE_DSTR instead of reusing NODE_STR.