public boolean variableIsAppendedTo(PsiVariable variable,
                                        PsiElement context) {
      final StringVariableIsAppendedToVisitor visitor =
        new StringVariableIsAppendedToVisitor(variable,
                                              onlyWarnOnLoop);
      context.accept(visitor);
      return visitor.isAppendedTo();
    }
public boolean variableIsAppendedTo(PsiVariable variable,
                                        PsiElement context)