[Isolates] KeyedLookupCache / DescriptorLookupCache / ContextSlotCache moved to Isolate.

src/scopeinfo.h

Index: src/scopeinfo.h
diff --git a/src/scopeinfo.h b/src/scopeinfo.h
index 927ac66fc4bee432d801537c7aaf8f83494e6a70..da89166a54a4d4aeb855dd5d3fa57945cbfcd10b 100644
--- a/src/scopeinfo.h
+++ b/src/scopeinfo.h
@@ -172,28 +172,31 @@ class ContextSlotCache {
  public:
   // Lookup context slot index for (code, name).
   // If absent, kNotFound is returned.
-  static int Lookup(Code* code,
-                    String* name,
-                    Variable::Mode* mode);
+  int Lookup(Code* code, String* name, Variable::Mode* mode);
 
   // Update an element in the cache.
-  static void Update(Code* code,
-                     String* name,
-                     Variable::Mode mode,
-                     int slot_index);
+  void Update(Code* code, String* name, Variable::Mode mode, int slot_index);
 
   // Clear the cache.
-  static void Clear();
+  void Clear();
 
   static const int kNotFound = -2;
  private:
+  ContextSlotCache() {
+    for (int i = 0; i < kLength; ++i) {
+      keys_[i].code = NULL;
+      keys_[i].name = NULL;
+      values_[i] = kNotFound;
+    }
+  }
+
   inline static int Hash(Code* code, String* name);
 
 #ifdef DEBUG
-  static void ValidateEntry(Code* code,
-                            String* name,
-                            Variable::Mode mode,
-                            int slot_index);
+  void ValidateEntry(Code* code,
+                     String* name,
+                     Variable::Mode mode,
+                     int slot_index);
 #endif
 
   static const int kLength = 256;
@@ -227,8 +230,11 @@ class ContextSlotCache {
     uint32_t value_;
   };
 
-  static Key keys_[kLength];
-  static uint32_t values_[kLength];
+  Key keys_[kLength];
+  uint32_t values_[kLength];
+
+  friend class Isolate;
+  DISALLOW_COPY_AND_ASSIGN(ContextSlotCache);
 };