tccrun: win32: improve rt_get_caller_pc
tccrun: win32: improve rt_get_caller_pc

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