[doc minor] Update the code docs for the core depth-first, recursive, in-order tree traversal `dispatch()` algorithm
[doc minor] Update the code docs for the core depth-first, recursive, in-order tree traversal `dispatch()` algorithm

vitalsource/director,mylikes/director,tanzhihang/director,andradedev/director,stonegithubs/director,ks3dev/director,stonegithubs/director,fadeit/director,lzhengms/director,noxryan/director,apeace/director,GerHobbelt/director,sheldonzf/director,webx32/director,webx32/director,tanzhihang/director,pandoraui/director,ks3dev/director,GerHobbelt/director,sheldonzf/director,mylikes/director,kiritoe/director,andradedev/director,fadeit/director,pocketjoso/director,kiritoe/director,pandoraui/director,cpg1111/director,flatiron/director,lzhengms/director,vitalsource/director,cpg1111/director,maxogden/director,meleslilijing/director,meleslilijing/director,pocketjoso/director