Add new function ICCompareStub::GenerateSymbols to mips, introduced in r7824.

BUG=
TEST=

Review URL: http://codereview.chromium.org//6970006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7831 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/mips/code-stubs-mips.cc

@@ -780,6 +780,11 @@ void ICCompareStub::GenerateHeapNumbers(MacroAssembler* masm) {
 }
 
 
+void ICCompareStub::GenerateSymbols(MacroAssembler* masm) {
+    UNIMPLEMENTED_MIPS();
+  }
+
+
 void ICCompareStub::GenerateStrings(MacroAssembler* masm) {
   UNIMPLEMENTED_MIPS();
 }