MIPS: Deprecate FACTORY helper macro.

src/mips/code-stubs-mips.cc

Index: src/mips/code-stubs-mips.cc
diff --git a/src/mips/code-stubs-mips.cc b/src/mips/code-stubs-mips.cc
index 552797adb224d70a3e36b79ec18269ef291811e0..87fe292cbbe66d41880b230f3f9f901179d44f4b 100644
--- a/src/mips/code-stubs-mips.cc
+++ b/src/mips/code-stubs-mips.cc
@@ -961,7 +961,7 @@ static void EmitIdenticalObjectComparison(MacroAssembler* masm,
 
   __ li(exp_mask_reg, Operand(HeapNumber::kExponentMask));
 
-  // Test for NaN. Sadly, we can't just compare to factory->nan_value(),
+  // Test for NaN. Sadly, we can't just compare to Factory::nan_value(),
   // so we do the second best thing - test it ourselves.
   // They are both equal and they are not both Smis so both of them are not
   // Smis. If it's not a heap number, then return equal.