Unbreak MIPS part a bit.

src/mips/builtins-mips.cc

Index: src/mips/builtins-mips.cc
diff --git a/src/mips/builtins-mips.cc b/src/mips/builtins-mips.cc
index 0342e6505daf986f6aa979d6e0ee5aba85419236..5a21230c91b460b49a264382019e37a87af68d05 100644
--- a/src/mips/builtins-mips.cc
+++ b/src/mips/builtins-mips.cc
@@ -1255,6 +1255,25 @@ void Builtins::Generate_LazyRecompile(MacroAssembler* masm) {
 }
 
 
+// Just a dummy for now, so snapshot generation works.
+static void GenerateMakeCodeYoungAgainCommon(MacroAssembler* masm) {
+  __ Ret();
+}
+
+
+#define DEFINE_CODE_AGE_BUILTIN_GENERATOR(C)                 \
+void Builtins::Generate_Make##C##CodeYoungAgainEvenMarking(  \
+    MacroAssembler* masm) {                                  \
+  GenerateMakeCodeYoungAgainCommon(masm);                    \
+}                                                            \
+void Builtins::Generate_Make##C##CodeYoungAgainOddMarking(   \
+    MacroAssembler* masm) {                                  \
+  GenerateMakeCodeYoungAgainCommon(masm);                    \
+}
+CODE_AGE_LIST(DEFINE_CODE_AGE_BUILTIN_GENERATOR)
+#undef DEFINE_CODE_AGE_BUILTIN_GENERATOR
+
+
 static void Generate_NotifyDeoptimizedHelper(MacroAssembler* masm,
                                              Deoptimizer::BailoutType type) {
   {