bug: Print csl namehint fix (#3207)

Print via `_use_var` instead of `name_hint`, as that can be `None`.

Co-authored-by: n-io <n-io@users.noreply.github.com>

xdsl/backend/csl/print_csl.py

@@ -770,7 +770,7 @@ def print_block(self, body: Block):
                         f"{self._var_use(result)} = @get_dsd( {self.mlir_type_to_csl_type(result.type)}, .{{"
                     )
                     self.print(
-                        f"  .tensor_access = | {ind_vars_str} | {{ {sizes_str} }} -> {base_addr.name_hint}[ {accesses_str} ]"
+                        f"  .tensor_access = | {ind_vars_str} | {{ {sizes_str} }} -> {self._var_use(base_addr)}[ {accesses_str} ]"
                     )
                     self.print("});")
                 case csl.GetFabDsdOp(