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, 4 insertions, 2 deletions

diff --git a/modules/gdscript/gd_editor.cpp b/modules/gdscript/gd_editor.cpp
index b0a18b4b4b..376a0f4341 100644
--- a/modules/gdscript/gd_editor.cpp
+++ b/modules/gdscript/gd_editor.cpp
@@ -297,23 +297,25 @@ void GDScriptLanguage::get_public_functions(List<MethodInfo> *p_functions) const
 	//not really "functions", but..
 	{
 		MethodInfo mi;
-		mi.name = "preload:Resource";
+		mi.name = "preload";
 		mi.arguments.push_back(PropertyInfo(Variant::STRING, "path"));
 		mi.return_val = PropertyInfo(Variant::OBJECT, "", PROPERTY_HINT_RESOURCE_TYPE, "Resource");
 		p_functions->push_back(mi);
 	}
 	{
 		MethodInfo mi;
-		mi.name = "yield:GDFunctionState";
+		mi.name = "yield";
 		mi.arguments.push_back(PropertyInfo(Variant::OBJECT, "object"));
 		mi.arguments.push_back(PropertyInfo(Variant::STRING, "signal"));
 		mi.default_arguments.push_back(Variant::NIL);
 		mi.default_arguments.push_back(Variant::STRING);
+		mi.return_val = PropertyInfo(Variant::OBJECT, "", PROPERTY_HINT_RESOURCE_TYPE, "GDFunctionState");
 		p_functions->push_back(mi);
 	}
 	{
 		MethodInfo mi;
 		mi.name = "assert";
+		mi.return_val.type = Variant::NIL;
 		mi.arguments.push_back(PropertyInfo(Variant::BOOL, "condition"));
 		p_functions->push_back(mi);
 	}