@Override
    public void visitLocalVariable(@NotNull PsiLocalVariable variable) {
      super.visitLocalVariable(variable);
      final PsiType type = variable.getType();
      if (!isConcatenatorType(type)) return;
      final PsiExpression initializer = PsiUtil.skipParenthesizedExprDown(variable.getInitializer());
      if (!isNewStringConcatenatorChain(initializer)) return;
      final PsiElement codeBlock = PsiUtil.getVariableCodeBlock(variable, null);
      if (codeBlock == null) return;
      final ReplaceableByStringVisitor visitor = new ReplaceableByStringVisitor(variable);
      codeBlock.accept(visitor);
      if (!visitor.isReplaceable()) return;
      registerVariableError(variable, variable, type, visitor.isPossibleSideEffect());
    }
@Override
    public void visitLocalVariable(@NotNull PsiLocalVariable variable)