Fix and adapt debugger for new call target caches.

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index b27b0bb3d0a5c482c5d4a5d88ab2b6e1a0189bb4..7901f0892d94ea7361b23c22fc98877bfd3af666 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -3202,6 +3202,18 @@ void Code::set_to_boolean_state(byte value) {
 }
 
 
+bool Code::has_function_cache() {
+  ASSERT(kind() == STUB);
+  return READ_BYTE_FIELD(this, kHasFunctionCacheOffset) != 0;
+}
+
+
+void Code::set_has_function_cache(bool flag) {
+  ASSERT(kind() == STUB);
+  WRITE_BYTE_FIELD(this, kHasFunctionCacheOffset, flag);
+}
+
+
 bool Code::is_inline_cache_stub() {
   Kind kind = this->kind();
   return kind >= FIRST_IC_KIND && kind <= LAST_IC_KIND;