message: Fix storing of pointer-pointers
diff: @@ -470,7 +470,7 @@ function evalInstr(instr: bril.Instruction, env: Env, heap:Heap<Value>, funcs: b
  heap.write(target.loc, getBool(instr, env, 1))
  break;
  }
  - case "ptr": {
  + default: {
  heap.write(target.loc, getPtr(instr, env, 1))
  break;
  }
  