GDScript: Allow access to outer constant and enum values

modules/gdscript/tests/scripts/analyzer/features/enum_from_parent.gd

@@ -0,0 +1,14 @@
+extends Node
+
+enum Named { VALUE_A, VALUE_B, VALUE_C = 42 }
+
+class Test:
+	var a = Named.VALUE_A
+	var b = Named.VALUE_B
+	var c = Named.VALUE_C
+
+func test():
+	var test_instance = Test.new()
+	prints("a", test_instance.a, test_instance.a == Named.VALUE_A)
+	prints("b", test_instance.b, test_instance.b == Named.VALUE_B)
+	prints("c", test_instance.c, test_instance.c == Named.VALUE_C)