Remove script class checks when getting function signature

modules/gdscript/tests/scripts/analyzer/errors/gdscript_duplicate.gd

@@ -0,0 +1,5 @@
+const TestClass = preload("gdscript_duplicate_class.notest.gd")
+
+func test():
+	# (TestClass as GDScript).duplicate() exists
+	TestClass.duplicate()

modules/gdscript/tests/scripts/analyzer/errors/gdscript_duplicate.out

@@ -0,0 +1,2 @@
+GDTEST_ANALYZER_ERROR
+Cannot call non-static function "duplicate()" on a class directly. Make an instance instead.

modules/gdscript/tests/scripts/analyzer/errors/gdscript_duplicate_class.notest.gd

@@ -0,0 +1 @@
+extends Node

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

@@ -0,0 +1,6 @@
+const TestClass = preload("gdscript_duplicate_class.notest.gd")
+
+func test():
+	# TestClass.duplicate() fails
+	@warning_ignore("return_value_discarded")
+	(TestClass as GDScript).duplicate()

modules/gdscript/tests/scripts/analyzer/features/gdscript_duplicate.out

@@ -0,0 +1 @@
+GDTEST_OK

modules/gdscript/tests/scripts/analyzer/features/gdscript_duplicate_class.notest.gd

@@ -0,0 +1 @@
+extends Node

modules/gdscript/tests/scripts/parser/features/super_class_check.gd

@@ -0,0 +1,13 @@
+# https://github.com/godotengine/godot/issues/71994
+
+func test():
+	pass
+
+class A extends RefCounted:
+	pass
+
+class B extends A:
+	# Parsing `duplicate()` here would throw this error:
+	# Parse Error: The function signature doesn't match the parent. Parent signature is "duplicate(bool = default) -> Resource".
+	func duplicate():
+		pass

modules/gdscript/tests/scripts/parser/features/super_class_check.out

@@ -0,0 +1 @@
+GDTEST_OK

modules/gdscript/tests/scripts/runtime/features/static_duplicate.gd

@@ -0,0 +1,19 @@
+const PreloadClass = preload("static_duplicate_preload.notest.gd")
+const PreloadClassAlias = PreloadClass
+
+func test():
+	var dup_preload_one = PreloadClass.duplicate()
+	print(dup_preload_one == Vector2.ONE)
+
+	var dup_preload_two = (PreloadClass as GDScript).duplicate()
+	print(dup_preload_two is GDScript)
+
+	var dup_preload_alias_one = PreloadClassAlias.duplicate()
+	print(dup_preload_alias_one == Vector2.ONE)
+
+	var dup_preload_alias_two = (PreloadClassAlias as GDScript).duplicate()
+	print(dup_preload_alias_two is GDScript)
+
+	var PreloadClassAsGDScript = PreloadClass as GDScript
+	var dup_preload_class_as_gdscript_one = PreloadClassAsGDScript.duplicate()
+	print(dup_preload_class_as_gdscript_one is GDScript)

modules/gdscript/tests/scripts/runtime/features/static_duplicate.out

@@ -0,0 +1,9 @@
+GDTEST_OK
+preload duplicate
+true
+true
+preload duplicate
+true
+true
+preload duplicate
+false

modules/gdscript/tests/scripts/runtime/features/static_duplicate_preload.notest.gd

@@ -0,0 +1,5 @@
+extends RefCounted
+
+static func duplicate() -> Vector2:
+	print("preload duplicate")
+	return Vector2.ONE