Make helper functions compatible with larger ToBooleanStub types.

src/ast.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_AST_H_
 #define V8_AST_H_
 
 #include "src/v8.h"
 
 #include "src/assembler.h"
@@ skipping 361 matching lines @@
     UNREACHABLE();
     return STANDARD_STORE;
   }
   virtual IcCheckType GetKeyType() const {
     UNREACHABLE();
     return ELEMENT;
   }
 
   // TODO(rossberg): this should move to its own AST node eventually.
   virtual void RecordToBooleanTypeFeedback(TypeFeedbackOracle* oracle);
-  byte to_boolean_types() const {
+  uint16_t to_boolean_types() const {
     return ToBooleanTypesField::decode(bit_field_);
   }
 
   void set_base_id(int id) { base_id_ = id; }
   static int num_ids() { return parent_num_ids() + 2; }
   BailoutId id() const { return BailoutId(local_id(0)); }
   TypeFeedbackId test_id() const { return TypeFeedbackId(local_id(1)); }
 
  protected:
   Expression(Zone* zone, int pos)
       : AstNode(pos),
         base_id_(BailoutId::None().ToInt()),
         bounds_(Bounds::Unbounded(zone)),
         bit_field_(0) {}
   static int parent_num_ids() { return 0; }
-  void set_to_boolean_types(byte types) {
+  void set_to_boolean_types(uint16_t types) {
     bit_field_ = ToBooleanTypesField::update(bit_field_, types);
   }
 
   int base_id() const {
     DCHECK(!BailoutId(base_id_).IsNone());
     return base_id_;
   }
 
  private:
   int local_id(int n) const { return base_id() + parent_num_ids() + n; }
 
   int base_id_;
   Bounds bounds_;
-  class ToBooleanTypesField : public BitField16<byte, 0, 8> {};
+  class ToBooleanTypesField : public BitField16<uint16_t, 0, 9> {};
   uint16_t bit_field_;
   // Ends with 16-bit field; deriving classes in turn begin with
   // 16-bit fields for optimum packing efficiency.
 };
 
 
 class BreakableStatement : public Statement {
  public:
   enum BreakableType {
     TARGET_FOR_ANONYMOUS,
@@ skipping 3181 matching lines @@
 
  private:
   Zone* zone_;
   AstValueFactory* ast_value_factory_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_AST_H_