more code completion improvements

-calltip dissapears with more types of keypresses or when pressing ')'
-properly looks into autoloaded scripts or nodes with another script for
script functions/variables/etc.

demos/2d/space_shooter/game_state.gd

@@ -8,12 +8,12 @@ var max_points = 0
 func _ready():
 	var f = File.new()
 	#load high score
+	
 	if (f.open("user://highscore",File.READ)==OK):
 		
 		max_points=f.get_var()
 
 
-
 func game_over():
 	if (points>max_points):
 		max_points=points

demos/2d/space_shooter/rail.gd

@@ -14,7 +14,6 @@ var offset=0
 
 
 func _process(delta):
-	
 	offset+=delta*SPEED
 	set_pos(Vector2(offset,0))