[WIP] NumberToString operator in TF.

src/compiler/operation-typer.h

Index: src/compiler/operation-typer.h
diff --git a/src/compiler/operation-typer.h b/src/compiler/operation-typer.h
index dcfe0c45eadeb229f087b83bf70a21ad3528d3d3..b3e4e792d1ae25b58e780ea3a0bb7b558b1843ae 100644
--- a/src/compiler/operation-typer.h
+++ b/src/compiler/operation-typer.h
@@ -11,6 +11,8 @@
 namespace v8 {
 namespace internal {
 
+// Forward declarations.
+class Factory;
 class Isolate;
 class RangeType;
 class Type;
@@ -19,6 +21,7 @@ class Zone;
 
 namespace compiler {
 
+// Forward declarations.
 class Operator;
 
 class OperationTyper {
@@ -71,8 +74,11 @@ class OperationTyper {
                        double rhs_max);
   Type* MultiplyRanger(Type* lhs, Type* rhs);
 
+  Factory* factory() const;
+  Isolate* isolate() const { return isolate_; }
   Zone* zone() const { return zone_; }
 
+  Isolate* const isolate_;
   Zone* const zone_;
   TypeCache const& cache_;