[clang] isUncountedPtr should take QualType as an argument. (PR #110213)

[Artem Dergachev via cfe-commits]

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@@ -190,11 +190,7 @@ class UncountedLocalVarsChecker
     if (shouldSkipVarDecl(V))
       return;
 
-    const auto *ArgType = V->getType().getTypePtr();
-    if (!ArgType)
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haoNoQ wrote:

Some of these null checks may still be necessary (with `QualType.isNull()`).

https://github.com/llvm/llvm-project/pull/110213