[turbofan] Enable DivIsSafe flag for arm64.

src/compiler/arm64/instruction-selector-arm64.cc

Index: src/compiler/arm64/instruction-selector-arm64.cc
diff --git a/src/compiler/arm64/instruction-selector-arm64.cc b/src/compiler/arm64/instruction-selector-arm64.cc
index 17b6b7634ce49a4613f22e9c772af8cabfbaea5a..7379ec08556765328cb5e5e0c890bb083acbbafa 100644
--- a/src/compiler/arm64/instruction-selector-arm64.cc
+++ b/src/compiler/arm64/instruction-selector-arm64.cc
@@ -1528,7 +1528,9 @@ InstructionSelector::SupportedMachineOperatorFlags() {
          MachineOperatorBuilder::kFloat64Ceil |
          MachineOperatorBuilder::kFloat64RoundTruncate |
          MachineOperatorBuilder::kFloat64RoundTiesAway |
-         MachineOperatorBuilder::kWord32ShiftIsSafe;
+         MachineOperatorBuilder::kWord32ShiftIsSafe |
+         MachineOperatorBuilder::kInt32DivIsSafe |
+         MachineOperatorBuilder::kUint32DivIsSafe;
 }
 }  // namespace compiler
 }  // namespace internal