Stop using Babel for types/make.js

package.json

@@ -47,7 +47,7 @@
     "test-win": "tap --no-cov --reporter=classic --timeout=150 test/*.js test/reporters/*.js",
     "visual": "node test/visual/run-visual-tests.js",
     "prepublish": "npm run make-ts",
-    "make-ts": "babel-node --presets=babel-preset-es2015-node4 --plugins=transform-runtime types/make.js"
+    "make-ts": "node types/make.js"
   },
   "files": [
     "lib",
@@ -168,7 +168,6 @@
     "update-notifier": "^1.0.0"
   },
   "devDependencies": {
-    "babel-cli": "^6.10.1",
     "babel-preset-react": "^6.5.0",
     "cli-table2": "^0.2.0",
     "coveralls": "^2.11.4",

types/make.js

@@ -16,7 +16,7 @@ const path = require('path');
 const fs = require('fs');
 const runner = require('../lib/runner');
 
-const arrayHas = parts => part => parts.includes(part);
+const arrayHas = parts => part => parts.indexOf(part) > -1;
 
 const base = fs.readFileSync(path.join(__dirname, 'base.d.ts'), 'utf8');
 
@@ -35,7 +35,7 @@ function generatePrefixed(prefix) {
 	for (const part of allParts) {
 		const parts = prefix.concat([part]);
 
-		if (prefix.includes(part) || !verify(parts, true)) {
+		if (prefix.indexOf(part) > -1 || !verify(parts, true)) {
 			// Function already in prefix or not allowed here
 			continue;
 		}
@@ -55,7 +55,7 @@ function generatePrefixed(prefix) {
 		// `always` is a valid prefix, for instance of `always.after`,
 		// but not a valid function name.
 		if (verify(parts, false)) {
-			if (parts.includes('todo')) {
+			if (parts.indexOf('todo') > -1) {
 				output += '\t' + writeFunction(part, 'name: string', 'void');
 			} else {
 				const type = testType(parts);
@@ -139,7 +139,7 @@ function exists(parts) {
 
 	// Valid prefix, check whether it has members
 	for (const prefix of allParts) {
-		if (!parts.includes(prefix) && exists(parts.concat([prefix]))) {
+		if (parts.indexOf(prefix) === -1 && exists(parts.concat([prefix]))) {
 			return true;
 		}
 	}