[turbofan] Improve representation selection for Smi checking.

src/compiler/redundancy-elimination.cc

Index: src/compiler/redundancy-elimination.cc
diff --git a/src/compiler/redundancy-elimination.cc b/src/compiler/redundancy-elimination.cc
index c671fc23b82a3e8797422c15bbc901cedacebdde..6dcf2bf4cf0c111da9c018c0feb8e946d22ad061 100644
--- a/src/compiler/redundancy-elimination.cc
+++ b/src/compiler/redundancy-elimination.cc
@@ -19,12 +19,12 @@ Reduction RedundancyElimination::Reduce(Node* node) {
   switch (node->opcode()) {
     case IrOpcode::kCheckBounds:
     case IrOpcode::kCheckFloat64Hole:
+    case IrOpcode::kCheckHeapObject:
     case IrOpcode::kCheckIf:
     case IrOpcode::kCheckNumber:
+    case IrOpcode::kCheckSmi:
     case IrOpcode::kCheckString:
     case IrOpcode::kCheckTaggedHole:
-    case IrOpcode::kCheckTaggedPointer:
-    case IrOpcode::kCheckTaggedSigned:
     case IrOpcode::kCheckedFloat64ToInt32:
     case IrOpcode::kCheckedInt32Add:
     case IrOpcode::kCheckedInt32Sub: