Update V8 to r4924 as required by WebKit r61871

Change-Id: Ic819dad0c1c9e035b8ffd306c96656ba87c5e85a
diff --git a/test/cctest/test-serialize.cc b/test/cctest/test-serialize.cc
index c4c8a45..3ec25c9 100644
--- a/test/cctest/test-serialize.cc
+++ b/test/cctest/test-serialize.cc
@@ -98,9 +98,11 @@
 }
 
 
+#ifdef ENABLE_DEBUGGER_SUPPORT
 static int register_code(int reg) {
   return Debug::k_register_address << kDebugIdShift | reg;
 }
+#endif  // ENABLE_DEBUGGER_SUPPORT
 
 
 TEST(ExternalReferenceEncoder) {
@@ -113,8 +115,10 @@
            Encode(encoder, Runtime::kAbort));
   CHECK_EQ(make_code(IC_UTILITY, IC::kLoadCallbackProperty),
            Encode(encoder, IC_Utility(IC::kLoadCallbackProperty)));
+#ifdef ENABLE_DEBUGGER_SUPPORT
   CHECK_EQ(make_code(DEBUG_ADDRESS, register_code(3)),
            Encode(encoder, Debug_Address(Debug::k_register_address, 3)));
+#endif  // ENABLE_DEBUGGER_SUPPORT
   ExternalReference keyed_load_function_prototype =
       ExternalReference(&Counters::keyed_load_function_prototype);
   CHECK_EQ(make_code(STATS_COUNTER, Counters::k_keyed_load_function_prototype),
@@ -131,9 +135,11 @@
       ExternalReference::address_of_real_stack_limit();
   CHECK_EQ(make_code(UNCLASSIFIED, 5),
            encoder.Encode(real_stack_limit_address.address()));
-  CHECK_EQ(make_code(UNCLASSIFIED, 12),
+#ifdef ENABLE_DEBUGGER_SUPPORT
+  CHECK_EQ(make_code(UNCLASSIFIED, 15),
            encoder.Encode(ExternalReference::debug_break().address()));
-  CHECK_EQ(make_code(UNCLASSIFIED, 7),
+#endif  // ENABLE_DEBUGGER_SUPPORT
+  CHECK_EQ(make_code(UNCLASSIFIED, 10),
            encoder.Encode(ExternalReference::new_space_start().address()));
   CHECK_EQ(make_code(UNCLASSIFIED, 3),
            encoder.Encode(ExternalReference::roots_address().address()));
@@ -150,8 +156,10 @@
            decoder.Decode(make_code(RUNTIME_FUNCTION, Runtime::kAbort)));
   CHECK_EQ(AddressOf(IC_Utility(IC::kLoadCallbackProperty)),
            decoder.Decode(make_code(IC_UTILITY, IC::kLoadCallbackProperty)));
+#ifdef ENABLE_DEBUGGER_SUPPORT
   CHECK_EQ(AddressOf(Debug_Address(Debug::k_register_address, 3)),
            decoder.Decode(make_code(DEBUG_ADDRESS, register_code(3))));
+#endif  // ENABLE_DEBUGGER_SUPPORT
   ExternalReference keyed_load_function =
       ExternalReference(&Counters::keyed_load_function_prototype);
   CHECK_EQ(keyed_load_function.address(),
@@ -164,10 +172,12 @@
            decoder.Decode(make_code(UNCLASSIFIED, 4)));
   CHECK_EQ(ExternalReference::address_of_real_stack_limit().address(),
            decoder.Decode(make_code(UNCLASSIFIED, 5)));
+#ifdef ENABLE_DEBUGGER_SUPPORT
   CHECK_EQ(ExternalReference::debug_break().address(),
-           decoder.Decode(make_code(UNCLASSIFIED, 12)));
+           decoder.Decode(make_code(UNCLASSIFIED, 15)));
+#endif  // ENABLE_DEBUGGER_SUPPORT
   CHECK_EQ(ExternalReference::new_space_start().address(),
-           decoder.Decode(make_code(UNCLASSIFIED, 7)));
+           decoder.Decode(make_code(UNCLASSIFIED, 10)));
 }