initial commit, 4.5 stable

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

@@ -0,0 +1,35 @@
+func variant() -> Variant: return null
+
+var member_weak = variant()
+var member_typed: Variant = variant()
+@warning_ignore("inference_on_variant")
+var member_inferred := variant()
+
+func param_weak(param = variant()) -> void: print(param)
+func param_typed(param: Variant = variant()) -> void: print(param)
+@warning_ignore("inference_on_variant")
+func param_inferred(param := variant()) -> void: print(param)
+
+func return_untyped(): return variant()
+func return_typed() -> Variant: return variant()
+
+@warning_ignore_start("unused_variable", "inference_on_variant")
+func test() -> void:
+	var weak = variant()
+	var typed: Variant = variant()
+	var inferred := variant()
+
+	weak = variant()
+	typed = variant()
+	inferred = variant()
+
+	@warning_ignore("unsafe_call_argument") # TODO: Hard vs Weak vs Unknown.
+	param_weak(typed)
+	param_typed(typed)
+	param_inferred(typed)
+
+	if typed == null: pass
+	if typed != null: pass
+	if typed is Node: pass
+
+	print("ok")