Fix lookup symbol for super()

modules/gdscript/tests/scripts/lsp/super.gd

@@ -0,0 +1,16 @@
+extends Node
+
+class Inner1:
+#     ^^^^^^ class1 -> class1
+	func _init():
+	#    ^^^^^ class1:init
+		pass
+
+class Inner2 extends Inner1:
+#     |    |         ^^^^^^ -> class1
+#     ^^^^^^ class2 -> class2
+	func _init():
+	#    ^^^^^ class2:init
+        super ()
+    #   ^^^^^ -> class1:init
+		pass