MIPS: Adapt Danno's Track Allocation Info idea to fast literals.

src/mips/codegen-mips.cc

Index: src/mips/codegen-mips.cc
diff --git a/src/mips/codegen-mips.cc b/src/mips/codegen-mips.cc
index 1da808963564079376ceb6c31060476425286ed9..27835af6f33485a8eabfcb1de81eb0b60f4f0ae9 100644
--- a/src/mips/codegen-mips.cc
+++ b/src/mips/codegen-mips.cc
@@ -180,6 +180,10 @@ void ElementsTransitionGenerator::GenerateSmiToDouble(
 
   Register scratch = t6;
 
+  if (FLAG_track_allocation_sites) {
+    masm->TestJSArrayForAllocationSiteInfo(a2, t0, fail);
+  }
+
   // Check for empty arrays, which only require a map transition and no changes
   // to the backing store.
   __ lw(t0, FieldMemOperand(a2, JSObject::kElementsOffset));