title: How to avoid evaluating an GString
body: <p>I'm working on extending a legacy script system using groovy. The source scripts are "java-like", so it mostly parses as a groovy script with a little pre-processing. </p>
  
  <p>I'm using invokeMethod() and missingMethod() to pass-through the legacy code, enabling me to use closures and other groovy features to enhance the scripts. However, the original script uses strings of the type "$foo" to refer to variables. When a legacy method is caught by missingMethod(), I need it to not evaluate this string as a GString, but simply outputting it verbatim. Is this possible in any way?</p>