DocData and type hints fixes

- Makes vararg methods automatically use PROPERTY_USAGE_NIL_IS_VARIANT on return types
- Completely removes the ":type" suffix for method names. Virtual methods must use the MethodInfo constructors that takes Variant::Type or PropertyHint as the first parameter for the return type (with CLASS_INFO as a helper to get the PropertyInfo). Parameters must use PROPERTY_HINT_RESOURCE_TYPE and hint string.
- PROPERTY_USAGE_NIL_IS_VARIANT is no longer needed for parameters, because parameters cannot be void.
- Adds missing PROPERTY_USAGE_NIL_IS_VARIANT to virtual and built-in methods that return Variant.

1 files changed, 7 insertions, 2 deletions

diff --git a/modules/visual_script/visual_script_nodes.cpp b/modules/visual_script/visual_script_nodes.cpp
index af7b334e46..1decc004ab 100644
--- a/modules/visual_script/visual_script_nodes.cpp
+++ b/modules/visual_script/visual_script_nodes.cpp
@@ -2702,7 +2702,10 @@ void VisualScriptCustomNode::_bind_methods() {
 	BIND_VMETHOD(MethodInfo(Variant::STRING, "_get_category"));
 
 	BIND_VMETHOD(MethodInfo(Variant::INT, "_get_working_memory_size"));
-	BIND_VMETHOD(MethodInfo(Variant::NIL, "_step:Variant", PropertyInfo(Variant::ARRAY, "inputs"), PropertyInfo(Variant::ARRAY, "outputs"), PropertyInfo(Variant::INT, "start_mode"), PropertyInfo(Variant::ARRAY, "working_mem")));
+
+	MethodInfo stepmi(Variant::NIL, "_step", PropertyInfo(Variant::ARRAY, "inputs"), PropertyInfo(Variant::ARRAY, "outputs"), PropertyInfo(Variant::INT, "start_mode"), PropertyInfo(Variant::ARRAY, "working_mem"));
+	stepmi.return_val.usage |= PROPERTY_USAGE_NIL_IS_VARIANT;
+	BIND_VMETHOD(stepmi);
 
 	ClassDB::bind_method(D_METHOD("_script_changed"), &VisualScriptCustomNode::_script_changed);
 
@@ -2839,7 +2842,9 @@ VisualScriptNodeInstance *VisualScriptSubCall::instance(VisualScriptInstance *p_
 
 void VisualScriptSubCall::_bind_methods() {
 
-	BIND_VMETHOD(MethodInfo(Variant::NIL, "_subcall:Variant", PropertyInfo(Variant::NIL, "arguments:Variant")));
+	MethodInfo scmi(Variant::NIL, "_subcall", PropertyInfo(Variant::NIL, "arguments"));
+	scmi.return_val.usage |= PROPERTY_USAGE_NIL_IS_VARIANT;
+	BIND_VMETHOD(scmi);
 }
 
 VisualScriptSubCall::VisualScriptSubCall() {