[clang] [analyzer] Check the correct first and last elements in cstring.UninitializedRead (PR #95408)

[Balazs Benics via cfe-commits]

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@@ -171,6 +174,17 @@ class MemRegion : public llvm::FoldingSetNode {
 
   Kind getKind() const { return kind; }
 
+  StringRef getKindStr() const {
+    switch (getKind()) {
+#define REGION(Id, Parent)                                                     \
+  case Id##Kind:                                                               \
+    return #Id;
+#include "clang/StaticAnalyzer/Core/PathSensitive/Regions.def"
+#undef REGION
+    }
+    llvm_unreachable("Unkown kind!");
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steakhal wrote:

Do we need this? To me the switch is complete, and if it wasn't, we would get a switch warning here anyways.

https://github.com/llvm/llvm-project/pull/95408