[clang] [CIR] Add support for array cleanups (PR #150499)

[Sirui Mu via cfe-commits]

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@@ -2272,6 +2272,23 @@ def CIR_ArrayCtor : CIR_ArrayInitDestroy<"array.ctor"> {
   }];
 }
 
+def CIR_ArrayDtor : CIR_ArrayInitDestroy<"array.dtor"> {
+  let summary = "Destroy array elements with C++ dtors";
+  let description = [{
+    Destroy each array element using the same C++ destructor. This
+    operation has one region, with one single block. The block has an
+    incoming argument for the current array index to initialize.
----------------
Lancern wrote:

```suggestion
    incoming argument for the current array element to destruct.
```

https://github.com/llvm/llvm-project/pull/150499