errors: port internal/process errors to internal/errors

* Assign codes to the handful of errors reported by
  internal/process/*.js
* Include documentation for the new error codes
* Improve error messages
* Improve test coverage for process.nextTick

PR-URL: https://github.com/nodejs/node/pull/11294
Ref: https://github.com/nodejs/node/issues/11273
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>

lib/internal/errors.js

@@ -80,4 +80,32 @@ module.exports = exports = {
 //
 // Note: Please try to keep these in alphabetical order
 E('ERR_ASSERTION', (msg) => msg);
+E('ERR_INVALID_ARG_TYPE', invalidArgType);
+E('ERR_INVALID_CALLBACK', 'callback must be a function');
+E('ERR_STDERR_CLOSE', 'process.stderr cannot be closed');
+E('ERR_STDOUT_CLOSE', 'process.stdout cannot be closed');
+E('ERR_UNKNOWN_STDIN_TYPE', 'Unknown stdin file type');
+E('ERR_UNKNOWN_STREAM_TYPE', 'Unknown stream file type');
 // Add new errors from here...
+
+function invalidArgType(name, expected, actual) {
+  assert(name, 'name is required');
+  assert(expected, 'expected is required');
+  var msg = `The "${name}" argument must be `;
+  if (Array.isArray(expected)) {
+    var len = expected.length;
+    expected = expected.map((i) => String(i));
+    if (len > 1) {
+      msg += `one of type ${expected.slice(0, len - 1).join(', ')}, or ` +
+             expected[len - 1];
+    } else {
+      msg += `of type ${expected[0]}`;
+    }
+  } else {
+    msg += `of type ${String(expected)}`;
+  }
+  if (arguments.length >= 3) {
+    msg += `. Received type ${actual !== null ? typeof actual : 'null'}`;
+  }
+  return msg;
+}