include sourcemap tests (and skip a tricky one, for now)

src/compile/nodes/Binding.ts

@@ -14,7 +14,7 @@ export default class Binding extends Node {
 	constructor(component: Component, parent, scope, info) {
 		super(component, parent, scope, info);
 
-		if (info.expression.type !== 'Identifier' && info.expression.node.type !== 'MemberExpression') {
+		if (info.expression.type !== 'Identifier' && info.expression.type !== 'MemberExpression') {
 			component.error(info, {
 				code: 'invalid-directive-value',
 				message: 'Can only bind to an identifier (e.g. `foo`) or a member expression (e.g. `foo.bar` or `foo[baz]`)'

test/preprocess/index.js

@@ -1,7 +1,7 @@
 import * as assert from 'assert';
 import { svelte } from '../helpers.js';
 
-describe('preprocess', () => {
+describe.only('preprocess', () => {
 	it('preprocesses entire component', () => {
 		const source = `
 			<h1>Hello __NAME__!</h1>

test/sourcemaps/index.js

@@ -5,18 +5,19 @@ import { loadConfig, svelte } from "../helpers.js";
 import { SourceMapConsumer } from "source-map";
 import { getLocator } from "locate-character";
 
-describe("sourcemaps", () => {
+describe.only("sourcemaps", () => {
 	fs.readdirSync("test/sourcemaps/samples").forEach(dir => {
 		if (dir[0] === ".") return;
 
 		// add .solo to a sample directory name to only run that test
 		const solo = /\.solo/.test(dir);
+		const skip = /\.skip/.test(dir);
 
 		if (solo && process.env.CI) {
 			throw new Error("Forgot to remove `solo: true` from test");
 		}
 
-		(solo ? it.only : it)(dir, () => {
+		(solo ? it.only : skip ? it.skip : it)(dir, () => {
 			const config = loadConfig(`./sourcemaps/samples/${dir}/_config.js`);
 
 			const filename = path.resolve(