message: Comment typo and code simplification.
diff: @@ -1838,7 +1838,7 @@ namespace {
  bool MayPreventVectorization(const HloInstruction& hlo) {
  if (hlo.opcode() == HloOpcode::kFusion) {
  return absl::c_any_of(hlo.fused_instructions_computation()->instructions(),
  - [&](const HloInstruction* instr) {
  + [](const HloInstruction* instr) {
  switch (instr->opcode()) {
  case HloOpcode::kReduce:
  case HloOpcode::kReduceWindow:
  @@ -1856,7 +1856,7 @@ bool MayPreventVectorization(const HloInstruction& hlo) {
  } else if (hlo.IsElementwise()) {
  // Unfused elementwise operations are usually memory bound, unroll them.
  switch (hlo.opcode()) {
  - // The following elementwise operations implementation contain branches.
  + // The following elementwise operation implementations contain branches.
  // LLVM vectorizer doesn't work in that case.
  // The unrolled code is faster when it isn't vectorized.
  case HloOpcode::kSin:
  