also moved scan_statement away from dynamic

jedi/evaluate/dynamic.py

@@ -103,7 +103,7 @@ def search_params(evaluator, param):
             for stmt in possible_stmts:
                 if isinstance(stmt, pr.Import):
                     continue
-                calls = _scan_statement(stmt, func_name)
+                calls = helpers.scan_statement(stmt, func_name)
                 for c in calls:
                     # no execution means that params cannot be set
                     call_path = list(c.generate_call_path())
@@ -182,39 +182,3 @@ def search_params(evaluator, param):
     func.listeners.remove(listener)
 
     return result
-
-
-def _scan_statement(stmt, search_name, assignment_details=False):
-    """ Returns the function Call that match search_name in an Array. """
-    def scan_array(arr, search_name):
-        result = []
-        if arr.type == pr.Array.DICT:
-            for key_stmt, value_stmt in arr.items():
-                result += _scan_statement(key_stmt, search_name)
-                result += _scan_statement(value_stmt, search_name)
-        else:
-            for stmt in arr:
-                result += _scan_statement(stmt, search_name)
-        return result
-
-    check = list(stmt.expression_list())
-    if assignment_details:
-        for expression_list, op in stmt.assignment_details:
-            check += expression_list
-
-    result = []
-    for c in check:
-        if isinstance(c, pr.Array):
-            result += scan_array(c, search_name)
-        elif isinstance(c, pr.Call):
-            s_new = c
-            while s_new is not None:
-                n = s_new.name
-                if isinstance(n, pr.Name) and search_name in n.names:
-                    result.append(c)
-
-                if s_new.execution is not None:
-                    result += scan_array(s_new.execution, search_name)
-                s_new = s_new.next
-
-    return result