[clang] [SemaHLSL] Verify assignment of local resources (PR #176793)

[Deric C. via cfe-commits]

================
@@ -230,6 +238,13 @@ class SemaHLSL : public SemaBase {
   // List of all resource bindings
   ResourceBindings Bindings;
 
+  // Map of local resource variables to their used global resource.
+  //
+  // The Binding can be a nullptr, in which case, the variable has not be
+  // initialized or assigned to yet.
----------------
Icohedron wrote:

nit
```suggestion
  // The binding can be a nullptr, in which case, the variable has yet to be
  // initialized or assigned to.
```

https://github.com/llvm/llvm-project/pull/176793