Remove functions_cache_ and it's references as it is not being used anymore.

vm/object.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/bigint_operations.h"
@@ skipping 1168 matching lines @@
     return;
   }
   StorePointer(&raw_ptr()->interfaces_, Object::empty_array());
   StorePointer(&raw_ptr()->constants_, Object::empty_array());
   StorePointer(&raw_ptr()->canonical_types_, Object::empty_array());
   StorePointer(&raw_ptr()->functions_, Object::empty_array());
   StorePointer(&raw_ptr()->fields_, Object::empty_array());
 }
 
 
-void Class::InitFunctionsCache() const {
-  // TODO(srdjan): Make functions_cache growable and start with smaller size.
-  StorePointer(&raw_ptr()->functions_cache_,
-               Array::New(FunctionsCache::kNumEntries * 32, Heap::kOld));
-}
-
-
 bool Class::HasInstanceFields() const {
   const Array& field_array = Array::Handle(fields());
   Field& field = Field::Handle();
   for (intptr_t i = 0; i < field_array.Length(); ++i) {
     field ^= field_array.At(i);
     if (!field.is_static()) {
       return true;
     }
   }
   return false;
@@ skipping 467 matching lines @@
 }
 
 
 void Class::set_interfaces(const Array& value) const {
   // Verification and resolving of interfaces occurs in finalizer.
   ASSERT(!value.IsNull());
   StorePointer(&raw_ptr()->interfaces_, value.raw());
 }
 
 
-void Class::set_functions_cache(const Array& value) const {
-  ASSERT(!value.IsNull());
-  StorePointer(&raw_ptr()->functions_cache_, value.raw());
-}
-
-
 RawArray* Class::constants() const {
   return raw_ptr()->constants_;
 }
 
 void Class::set_constants(const Array& value) const {
   ASSERT(!value.IsNull());
   StorePointer(&raw_ptr()->constants_, value.raw());
 }
 
 
@@ skipping 9342 matching lines @@
 const char* JSRegExp::ToCString() const {
   const String& str = String::Handle(pattern());
   const char* format = "JSRegExp: pattern=%s flags=%s";
   intptr_t len = OS::SNPrint(NULL, 0, format, str.ToCString(), Flags());
   char* chars = Isolate::Current()->current_zone()->Alloc<char>(len + 1);
   OS::SNPrint(chars, (len + 1), format, str.ToCString(), Flags());
   return chars;
 }
 
 }  // namespace dart