resolved some cases wehre built-in doc is not properlt generated, fixes #1719

core/variant_call.cpp

@@ -1112,6 +1112,7 @@ void Variant::get_constructor_list(Variant::Type p_type, List<MethodInfo> *p_lis
 		const _VariantCall::ConstructData &cd = E->get();
 		MethodInfo mi;
 		mi.name=Variant::get_type_name(p_type);
+		mi.return_val.type=p_type;
 		for(int i=0;i<cd.arg_count;i++) {
 
 			PropertyInfo pi;
@@ -1134,6 +1135,7 @@ void Variant::get_constructor_list(Variant::Type p_type, List<MethodInfo> *p_lis
 		pi.name="from";
 		pi.type=Variant::Type(i);
 		mi.arguments.push_back(pi);
+		mi.return_val.type=p_type;
 		p_list->push_back(mi);
 	}
 }

tools/doc/doc_data.cpp

@@ -59,6 +59,9 @@ void DocData::merge_from(const DocData& p_data) {
 
 				if (cf.methods[j].name!=m.name)
 					continue;
+				if (cf.methods[j].arguments.size()!=m.arguments.size())
+					continue;
+
 				const MethodDoc &mf = cf.methods[j];
 
 				m.description=mf.description;