fix(emacs/lean-info): handle when both identifier and symbol info exist
fix(emacs/lean-info): handle when both identifier and symbol info exist

Example: library/data/int/basic.lean file (398, 22)

The '+' symbol is attached with both of identifier info and symbol info

-- SYMBOL|398|22
+
-- ACK
-- IDENTIFIER|398|22
int.add
-- ACK

Kha/lean,sp3ctum/lean,soonhokong/lean-osx,rlewis1988/lean,eigengrau/lean,soonhokong/lean,c-cube/lean,javra/lean,fpvandoorn/lean,avigad/lean,fgdorais/lean,javra/lean,sp3ctum/lean,soonhokong/lean-windows,Kha/lean,leanprover/lean,javra/lean,eigengrau/lean,fpvandoorn/lean2,avigad/lean,soonhokong/lean-osx,fpvandoorn/lean2,avigad/lean,fgdorais/lean,leanprover/lean,fpvandoorn/lean2,dselsam/lean,soonhokong/lean-osx,soonhokong/lean-windows,fpvandoorn/lean2,levnach/lean,fpvandoorn/lean,leanprover/lean,avigad/lean,c-cube/lean,javra/lean,leanprover-community/lean,c-cube/lean,htzh/lean,htzh/lean,fpvandoorn/lean,leanprover-community/lean,htzh/lean,dselsam/lean,johoelzl/lean,htzh/lean,soonhokong/lean,leodemoura/lean,johoelzl/lean,UlrikBuchholtz/lean,eigengrau/lean,leanprover/lean,eigengrau/lean,javra/lean,fgdorais/lean,levnach/lean,johoelzl/lean,leanprover/lean,fgdorais/lean,fpvandoorn/lean,avigad/lean,c-cube/lean,Kha/lean,Kha/lean,soonhokong/lean-osx,sp3ctum/lean,fpvandoorn/lean,fgdorais/lean,c-cube/lean,levnach/lean,soonhokong/lean-windows,htzh/lean,dselsam/lean,soonhokong/lean,soonhokong/lean-windows,digama0/lean,digama0/lean,eigengrau/lean,leodemoura/lean,UlrikBuchholtz/lean,digama0/lean,UlrikBuchholtz/lean,leodemoura/lean,digama0/lean,fpvandoorn/lean,rlewis1988/lean,johoelzl/lean,avigad/lean,digama0/lean,dselsam/lean,dselsam/lean,Kha/lean,rlewis1988/lean,leodemoura/lean,rlewis1988/lean,digama0/lean,rlewis1988/lean,fpvandoorn/lean2,soonhokong/lean,leanprover-community/lean,soonhokong/lean,dselsam/lean,UlrikBuchholtz/lean,leanprover-community/lean,soonhokong/lean-windows,rlewis1988/lean,UlrikBuchholtz/lean,levnach/lean,levnach/lean,Kha/lean,fgdorais/lean,sp3ctum/lean,leanprover-community/lean,soonhokong/lean-osx,leanprover-community/lean,johoelzl/lean,johoelzl/lean,leodemoura/lean,leodemoura/lean,leanprover/lean,sp3ctum/lean