muJSVarInitializer:: JSVarInitializer -> Expression
muJSVarInitializer (JSVarInit _ expression) = muJSExpression expression
muJSVarInitializer:: JSVarInitializer -> Expression
muJSVarInitializer (JSVarInit _ expression) = muJSExpression expression
muJSVarInitializer (JSVarInit _ expression) = muJSExpression expression