Allow lazy compilation (and thus optimisation) of functions inside eval.

src/lithium.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 138 matching lines @@
       : public BitField<Lifetime, kLifetimeShift, kLifetimeWidth> {
   };
 
   class VirtualRegisterField
       : public BitField<unsigned,
                         kVirtualRegisterShift,
                         kVirtualRegisterWidth> {
   };
 
   static const int kMaxVirtualRegisters = 1 << kVirtualRegisterWidth;
-  static const int kMaxFixedIndex = (1 << kFixedIndexWidth) - 1;
-  static const int kMinFixedIndex = -(1 << kFixedIndexWidth);
+  static const int kMaxFixedIndex = (1 << (kFixedIndexWidth - 1)) - 1;
+  static const int kMinFixedIndex = -(1 << (kFixedIndexWidth - 1));
 
   bool HasAnyPolicy() const {
     return policy() == ANY;
   }
   bool HasFixedPolicy() const {
     return policy() == FIXED_REGISTER ||
         policy() == FIXED_DOUBLE_REGISTER ||
         policy() == FIXED_SLOT;
   }
   bool HasRegisterPolicy() const {
@@ skipping 532 matching lines @@
   ZoneList<Handle<JSFunction> > inlined_closures_;
 };
 
 
 int ElementsKindToShiftSize(ElementsKind elements_kind);
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_LITHIUM_H_