message: fixing debug-only check
  Summary: Not being clowny.
diff: @@ -937,7 +937,6 @@ class DedupBlocksImpl {
  }
  void check_inits(cfg::ControlFlowGraph& cfg) {
  - reaching_defs::Environment defs_in;
  reaching_defs::MoveAwareFixpointIterator fixpoint_iter(cfg);
  fixpoint_iter.run(reaching_defs::Environment());
  for (cfg::Block* block : cfg.blocks()) {
  @@ -946,11 +945,11 @@ class DedupBlocksImpl {
  IRInstruction* insn = mie.insn;
  if (opcode::is_invoke_direct(insn->opcode()) &&
  method::is_init(insn->get_method())) {
  - auto defs = defs_in.get(insn->src(0));
  + auto defs = env.get(insn->src(0));
  always_assert(!defs.is_top());
  always_assert(defs.elements().size() == 1);
  }
  - fixpoint_iter.analyze_instruction(insn, &defs_in);
  + fixpoint_iter.analyze_instruction(insn, &env);
  }
  }
  }
  