Function createMethodSignature

test/fixtures/snapshot/typescript.js:23327–23333

(modifiers, name, questionToken, typeParameters, parameters, type)

        }
        // @api
        function createMethodSignature(modifiers, name, questionToken, typeParameters, parameters, type) {
            var node = createBaseSignatureDeclaration(168 /* SyntaxKind.MethodSignature */, 
            /*decorators*/ undefined, modifiers, name, typeParameters, parameters, type);
            node.questionToken = questionToken;
            node.transformFlags = 1 /* TransformFlags.ContainsTypeScript */;
            return node;
        }
        // @api
        function updateMethodSignature(node, modifiers, name, questionToken, typeParameters, parameters, type) {
            return node.modifiers !== modifiers