[turbofan] Correctify representation changes to bit.

src/compiler/js-graph.h

Index: src/compiler/js-graph.h
diff --git a/src/compiler/js-graph.h b/src/compiler/js-graph.h
index 040a745e3cfd553a7796f36846197084c46db7f2..2d8d035504efbbbc2687ecbe06cc142d4bd9a5e8 100644
--- a/src/compiler/js-graph.h
+++ b/src/compiler/js-graph.h
@@ -16,6 +16,7 @@ namespace v8 {
 namespace internal {
 namespace compiler {
 
+// Forward declarations.
 class Typer;
 
 // Implements a facade on a Graph, enhancing the graph with JS-specific
@@ -109,6 +110,9 @@ class JSGraph : public ZoneObject {
   // stubs and runtime functions that do not require a context.
   Node* NoContextConstant() { return ZeroConstant(); }
 
+  // Cached common types.
+  Type* ZeroOneRangeType();
+
   JSOperatorBuilder* javascript() { return javascript_; }
   CommonOperatorBuilder* common() { return common_; }
   MachineOperatorBuilder* machine() { return machine_; }
@@ -136,6 +140,8 @@ class JSGraph : public ZoneObject {
   SetOncePointer<Node> one_constant_;
   SetOncePointer<Node> nan_constant_;
 
+  SetOncePointer<Type> zero_one_range_type_;
+
   CommonNodeCache cache_;
 
   Node* ImmovableHeapConstant(Handle<HeapObject> value);