[clang] [clang][Sema] Warn consecutive builtin comparisons in an expression (PR #92200)

[Aaron Ballman via cfe-commits]

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@@ -487,6 +487,9 @@ Improvements to Clang's diagnostics
        }
      };
 
+- Clang emits a ``-Wparentheses`` warning for expressions with consecutive comparisons like ``x < y < z``.
+  It was made a ``-Wparentheses`` warning to be consistent with gcc.
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AaronBallman wrote:

```suggestion
- Clang emits a ``-Wparentheses`` warning for expressions with consecutive comparisons like ``x < y < z``.
  Fixes #GH20456.
```

https://github.com/llvm/llvm-project/pull/92200