[clang-tools-extra] [clang-tidy] Fix invalid fixit from modernize-use-ranges for nullptr used with std::unique_ptr (PR #127162)

[Piotr Zegar via cfe-commits]

================
@@ -215,6 +215,16 @@ void UseRangesCheck::check(const MatchFinder::MatchResult 
&Result) {
     const auto *Call = Result.Nodes.getNodeAs<CallExpr>(Buffer);
     if (!Call)
       continue;
+    if (Function->getName() == "find") {
+      unsigned ValueArgIndex = 2;
+      if (Call->getNumArgs() <= ValueArgIndex)
+        continue;
+      const Expr *ValueExpr =
+          Call->getArg(ValueArgIndex)->IgnoreParenImpCasts();
+      if (isa<CXXNullPtrLiteralExpr>(ValueExpr)) {
+        return;
+      }
----------------
PiotrZSL wrote:

```suggestion
      if (isa<CXXNullPtrLiteralExpr>(ValueExpr))
        return;
```

https://github.com/llvm/llvm-project/pull/127162
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