Divide the method to find the definition of a named function from a ReachIn set in a scope and Remove the method to update scopesToSearch and Fix the bug of misuse of Array.splice
Divide the method to find the definition of a named function from a ReachIn set in a scope and Remove the method to update scopesToSearch and Fix the bug of misuse of Array.splice

chengfulin/dujs,chengfulin/dujs