fix "symbol not defined" if symbol has offset 0
fix "symbol not defined" if symbol has offset 0

mobiphil/tinnycc,acook/tinycc,gfwilliams/tinycc,acook/tinycc,avih/tinycc,rchandramouli/tinycc,andrewchambers/tccmirror,avih/tinycc,fstudio/tinycc,Saectar/inherpreter,shinh/nacltcc,code4game/tinycc,rchandramouli/tinycc,yousong/tinycc,andrewchambers/tccmirror,alfonsokim/tinycc,melkior/tinycc,gfwilliams/tinycc,Saectar/inherpreter,Saectar/inherpreter,ftdi-paul-jiao/tinyCC,mingodad/tinycc,yousong/tinycc,rchandramouli/tinycc,acook/tinycc,leeduhem/tinycc,metaeducation/tcc,code4game/tinycc,mitake/tinycc,seyko2/tinycc,Wallbraker/DCPU-TCC,alfonsokim/tinycc,xcm/tcc,metaeducation/tcc,shinh/nacltcc,leeduhem/tinycc,run4flat/tinycc,rchandramouli/tinycc,leeduhem/tinycc,melkior/tinycc,seyko2/tinycc,melkior/tinycc,fstudio/tinycc,xcm/tcc,soywiz/tinycc,mingodad/tinycc,andrewchambers/tccmirror,mirror/tinycc,mitake/tinycc,soywiz/tinycc,gfwilliams/tinycc,metaeducation/tcc,FriedBreakfast/tcc,soywiz/tinycc,seyko2/tinycc,fstudio/tinycc,mitake/tinycc,leeduhem/tinycc,mobiphil/tinnycc,melkior/tinycc,ftdi-paul-jiao/tinyCC,ftdi-paul-jiao/tinyCC,mingodad/tinycc,mirror/tinycc,run4flat/tinycc,ftdi-paul-jiao/tinyCC,alfonsokim/tinycc,shinh/nacltcc,Archs/TinyCC,gfwilliams/tinycc,mobiphil/tinnycc,shinh/nacltcc,yousong/tinycc,avih/tinycc,mirror/tinycc,andrewchambers/tccmirror,melkior/tinycc,FriedBreakfast/tcc,avih/tinycc,Archs/TinyCC,seyko2/tinycc,shinh/nacltcc,FriedBreakfast/tcc,acook/tinycc,Saectar/inherpreter,fstudio/tinycc,mirror/tinycc,gfwilliams/tinycc,fstudio/tinycc,mingodad/tinycc,seyko2/tinycc,soywiz/tinycc,metaeducation/tcc,run4flat/tinycc,Saectar/inherpreter,run4flat/tinycc,metaeducation/tcc,FriedBreakfast/tcc,mitake/tinycc,andreiw/tinycc,Wallbraker/DCPU-TCC,andreiw/tinycc,xcm/tcc,code4game/tinycc,Archs/TinyCC,Archs/TinyCC,run4flat/tinycc,FriedBreakfast/tcc,Archs/TinyCC,alfonsokim/tinycc,andreiw/tinycc,yousong/tinycc,Wallbraker/DCPU-TCC,leeduhem/tinycc,mobiphil/tinnycc,alfonsokim/tinycc,andrewchambers/tccmirror,rchandramouli/tinycc