void maybePrepareCall(Reference ref) {
    CallSiteType callSiteType = classifyCallSite(ref);
    callSiteType.prepare(this, ref);
  }
void maybePrepareCall ( Reference ref ) { CallSiteType callSiteType = classifyCallSite ( ref ) ; callSiteType . prepare ( this , ref ) ; }
If required, rewrite the statement containing the call expression.
@see ExpressionDecomposer#canExposeExpression