Direct call to eval passes strict mode through.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 8c63022db8a0ac94928987882ddf258aabc599fd..6b1e4fb68575b9b5071da4bfbc1afc3b45f22cec 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -4170,6 +4170,10 @@ class SharedFunctionInfo: public HeapObject {
   inline bool optimization_disabled();
   inline void set_optimization_disabled(bool value);
 
+  // Indicates whether the function is a strict mode function.
+  inline bool strict_mode();
+  inline void set_strict_mode(bool value);
+
   // Indicates whether or not the code in the shared function support
   // deoptimization.
   inline bool has_deoptimization_support();
@@ -4351,6 +4355,7 @@ class SharedFunctionInfo: public HeapObject {
   static const int kCodeAgeShift = 4;
   static const int kCodeAgeMask = 0x7;
   static const int kOptimizationDisabled = 7;
+  static const int kStrictModeFunction = 8;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(SharedFunctionInfo);
 };
@@ -4834,10 +4839,12 @@ class CompilationCacheTable: public HashTable<CompilationCacheShape,
  public:
   // Find cached value for a string key, otherwise return null.
   Object* Lookup(String* src);
-  Object* LookupEval(String* src, Context* context);
+  Object* LookupEval(String* src, Context* context, StrictModeFlag strict_mode);
   Object* LookupRegExp(String* source, JSRegExp::Flags flags);
   MaybeObject* Put(String* src, Object* value);
-  MaybeObject* PutEval(String* src, Context* context, Object* value);
+  MaybeObject* PutEval(String* src,
+                       Context* context,
+                       SharedFunctionInfo* value);
   MaybeObject* PutRegExp(String* src, JSRegExp::Flags flags, FixedArray* value);
 
   // Remove given value from cache.