[turbofan] Use an IntPtrConstant in WordEqual comparisons.

src/compiler/effect-control-linearizer.cc

Index: src/compiler/effect-control-linearizer.cc
diff --git a/src/compiler/effect-control-linearizer.cc b/src/compiler/effect-control-linearizer.cc
index 0156067cce4e2724442ce8a95f579ffabac5066f..318c55ba90a547e1155d9c1253bbee007fd08bd9 100644
--- a/src/compiler/effect-control-linearizer.cc
+++ b/src/compiler/effect-control-linearizer.cc
@@ -925,7 +925,7 @@ EffectControlLinearizer::LowerTruncateTaggedToBit(Node* node, Node* effect,
     values[count] =
         graph()->NewNode(machine()->Word32Equal(),
                          graph()->NewNode(machine()->WordEqual(), value,
-                                          jsgraph()->ZeroConstant()),
+                                          jsgraph()->IntPtrConstant(0)),
                          zero);
     count++;
   }
@@ -978,7 +978,7 @@ EffectControlLinearizer::LowerTruncateTaggedToBit(Node* node, Node* effect,
     values[count] =
         graph()->NewNode(machine()->Word32Equal(),
                          graph()->NewNode(machine()->WordEqual(), value_length,
-                                          jsgraph()->ZeroConstant()),
+                                          jsgraph()->IntPtrConstant(0)),
                          zero);
     count++;
   }