Assorted enum and native type fixes

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

@@ -0,0 +1,13 @@
+class A:
+	enum Named { VALUE_A, VALUE_B, VALUE_C = 42 }
+
+class B extends A:
+	var a = Named.VALUE_A
+	var b = Named.VALUE_B
+	var c = Named.VALUE_C
+
+func test():
+	var test_instance = B.new()
+	prints("a", test_instance.a, test_instance.a == A.Named.VALUE_A)
+	prints("b", test_instance.b, test_instance.b == A.Named.VALUE_B)
+	prints("c", test_instance.c, test_instance.c == B.Named.VALUE_C)