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, 1 insertions, 0 deletions

diff --git a/core/method_bind.h b/core/method_bind.h
index f6cae6f34d..75f09b2cd9 100644
--- a/core/method_bind.h
+++ b/core/method_bind.h
@@ -334,6 +334,7 @@ public:
 		}
 		argument_types = at;
 		arguments = p_info;
+		arguments.return_val.usage |= PROPERTY_USAGE_NIL_IS_VARIANT;
 #endif
 	}