[@wordpress/token-list] add new definitions (#36689)

types/wordpress__token-list/index.d.ts

@@ -0,0 +1,11 @@
+// Type definitions for @wordpress/token-list 1.4
+// Project: https://github.com/WordPress/gutenberg/tree/master/packages/token-list/README.md
+// Definitions by: Derek Sifford <https://github.com/dsifford>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 3.5
+
+declare const TokenList: {
+    new (initialValue?: string): DOMTokenList;
+};
+
+export default TokenList;

types/wordpress__token-list/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": ["dom", "es6"],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": ["../"],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true,
+        "paths": {
+            "@wordpress/token-list": ["wordpress__token-list"]
+        }
+    },
+    "files": ["index.d.ts", "wordpress__token-list-tests.ts"]
+}

types/wordpress__token-list/tslint.json

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+{ "extends": "dtslint/dt.json" }

types/wordpress__token-list/wordpress__token-list-tests.ts

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+import TokenList from '@wordpress/token-list';
+
+// $ExpectType DOMTokenList
+new TokenList();
+
+// $ExpectType DOMTokenList
+const list = new TokenList('foo bar');