Fix bug in linked_list_block_size().
Fix bug in linked_list_block_size().

and Ruben Ayrapetyan fix a bug in linked_list_switch_to_next_elem

Related issue: #720

JerryScript-DCO-1.0-Signed-off-by: Zidong Jiang zidong.jiang@intel.com

bzsolt/jerryscript,gabrielschulhof/jerryscript,tilmannOSG/jerryscript,akosthekiss/jerryscript,zherczeg/jerryscript,glistening/jerryscript,jerryscript-project/jerryscript,tilmannOSG/jerryscript,yichoi/jerryscript,LaszloLango/jerryscript,bsdelf/jerryscript,dbatyai/jerryscript,robertsipka/jerryscript,jerryscript-project/jerryscript,grgustaf/jerryscript,robertsipka/jerryscript,grgustaf/jerryscript,jack60504/jerryscript,jack60504/jerryscript,martijnthe/jerryscript,loki04/jerryscript,akosthekiss/jerryscript,loki04/jerryscript,robertsipka/jerryscript,jack60504/jerryscript,loki04/jerryscript,gabrielschulhof/jerryscript,akosthekiss/jerryscript,robertsipka/jerryscript,jerryscript-project/jerryscript,bsdelf/jerryscript,LaszloLango/jerryscript,grgustaf/jerryscript,yichoi/jerryscript,dbatyai/jerryscript,robertsipka/jerryscript,LaszloLango/jerryscript,slaff/jerryscript,jerryscript-project/jerryscript,glistening/jerryscript,bsdelf/jerryscript,bzsolt/jerryscript,bsdelf/jerryscript,bzsolt/jerryscript,slaff/jerryscript,LeeHayun/jerryscript,loki04/jerryscript,martijnthe/jerryscript,bzsolt/jerryscript,gabrielschulhof/jerryscript,LeeHayun/jerryscript,zherczeg/jerryscript,akosthekiss/jerryscript,slaff/jerryscript,glistening/jerryscript,glistening/jerryscript,glistening/jerryscript,LeeHayun/jerryscript,glistening/jerryscript,akosthekiss/jerryscript,yichoi/jerryscript,tilmannOSG/jerryscript,jack60504/jerryscript,martijnthe/jerryscript,martijnthe/jerryscript,zherczeg/jerryscript,loki04/jerryscript,grgustaf/jerryscript,yichoi/jerryscript,zherczeg/jerryscript,jack60504/jerryscript,bsdelf/jerryscript,gabrielschulhof/jerryscript,slaff/jerryscript,LaszloLango/jerryscript,tilmannOSG/jerryscript,bsdelf/jerryscript,jack60504/jerryscript,zherczeg/jerryscript,tilmannOSG/jerryscript,LaszloLango/jerryscript,gabrielschulhof/jerryscript,yichoi/jerryscript,LeeHayun/jerryscript,loki04/jerryscript,grgustaf/jerryscript,slaff/jerryscript,martijnthe/jerryscript,jerryscript-project/jerryscript,LeeHayun/jerryscript,grgustaf/jerryscript,dbatyai/jerryscript,dbatyai/jerryscript,bzsolt/jerryscript,dbatyai/jerryscript,robertsipka/jerryscript,martijnthe/jerryscript