Add data: test and fix linting errors

doc/api/esm.md

@@ -317,8 +317,8 @@ added: REPLACEME
 * {string} The directory name of the current module. This is the same as the
   [`path.dirname()`][] of the [`import.meta.__filename`][].
 
-> **Caveat** only local modules support this property. Modules not using the `file:` protocol will
-> not provide it.
+> **Caveat** only local modules support this property. Modules not using the
+> `file:` protocol will not provide it.
 
 ### `import.meta.__filename`
 
@@ -330,8 +330,8 @@ added: REPLACEME
   file's absolute path with symlinks resolved. This is the same as the
   [`url.fileURLToPath()`][] of the [`import.meta.url`][].
 
-> **Caveat** only local modules support this property. Modules not using the `file:` protocol will
-> not provide it.
+> **Caveat** only local modules support this property. Modules not using the
+> `file:` protocol will not provide it.
 
 ### `import.meta.url`
 
@@ -1624,7 +1624,6 @@ for ESM specifiers is [commonjs-extension-resolution-loader][].
 [`data:` URLs]: https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs
 [`export`]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/export
 [`import()`]: #import-expressions
-[`import.meta.__dirname`]: #importmeta__dirname
 [`import.meta.__filename`]: #importmeta__filename
 [`import.meta.resolve`]: #importmetaresolvespecifier-parent
 [`import.meta.url`]: #importmetaurl

test/es-module/test-esm-import-meta.mjs

@@ -24,3 +24,7 @@ assert(import.meta.__dirname.match(dirReg));
 
 const fileReg = /^\/.*\/test\/es-module\/test-esm-import-meta\.mjs$/;
 assert(import.meta.__filename.match(fileReg));
+
+// Verify that `data:` imports do not behave like `file:` imports.
+import dataDirname from 'data:text/javascript,const a = import.meta.__dirname;export default a;';
+assert.strictEqual(dataDirname, undefined);