Function updateBaseSignatureDeclaration

test/fixtures/snapshot/typescript.js:22835–22840

(updated, original)

            return node;
        }
        function updateBaseSignatureDeclaration(updated, original) {
            // copy children used only for error reporting
            if (original.typeArguments)
                updated.typeArguments = original.typeArguments;
            return update(updated, original);
        }
        function createBaseFunctionLikeDeclaration(kind, decorators, modifiers, name, typeParameters, parameters, type, body) {
            var node = createBaseSignatureDeclaration(kind, decorators, modifiers, name, typeParameters, parameters, type);
            node.body = body;