[llvm] [DirectX] Remove unused heap resources (PR #218093)

[Finn Plummer via llvm-commits]

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@@ -87,9 +91,9 @@ static bool removeUnusedResources(Function &F) {
 
   for (auto *Instr : DeadInstr) {
     if (auto *II = dyn_cast<IntrinsicInst>(Instr)) {
-      assert(II->getIntrinsicID() == Intrinsic::dx_resource_handlefrombinding ||
-             II->getIntrinsicID() ==
-                 Intrinsic::dx_resource_handlefromimplicitbinding);
+      assert(isResourceHandleCreation(II->getIntrinsicID()));
+      if (II->getIntrinsicID() == Intrinsic::dx_resource_handlefromheap)
+        continue;
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inbelic wrote:

nit:
```suggestion
        continue; // A heap resource does not have an associated global variable to remove
```
or the like

https://github.com/llvm/llvm-project/pull/218093