Update lib/internal/repl/await.js

Co-authored-by: Jordan Harband <ljharb@gmail.com>

Author: guybedford

lib/internal/repl/await.js

@@ -107,7 +107,7 @@ function processTopLevelAwait(src) {
   try {
     root = parser.parse(wrapped, { ecmaVersion: 'latest' });
   } catch (e) {
-    if (e.message.startsWith('Unterminated '))
+    if (StringPrototypeStartsWith(e.message, 'Unterminated '))
       throw new Recoverable(e);
     // If the parse error is before the first "await", then use the execution
     // error. Otherwise we must emit this parse error, making it look like a