Adapt Danno's Track Allocation Info idea to fast literals. When allocating a literal array,

src/ia32/full-codegen-ia32.cc

Index: src/ia32/full-codegen-ia32.cc
diff --git a/src/ia32/full-codegen-ia32.cc b/src/ia32/full-codegen-ia32.cc
index 95e95d4126599679e07c84db2d851ac7330ffc60..02044216d413f4245e619b06ad9acc055d0d6418 100644
--- a/src/ia32/full-codegen-ia32.cc
+++ b/src/ia32/full-codegen-ia32.cc
@@ -1678,6 +1678,15 @@ void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) {
     FastCloneShallowArrayStub::Mode mode = has_constant_fast_elements
         ? FastCloneShallowArrayStub::CLONE_ELEMENTS
         : FastCloneShallowArrayStub::CLONE_ANY_ELEMENTS;
+
+    // Tracking allocation info allows us to pre-transition later if it makes
+    // sense.
+    if (mode == FastCloneShallowArrayStub::CLONE_ANY_ELEMENTS &&
+        FLAG_track_allocation_sites) {
+      mode = FastCloneShallowArrayStub::
+          CLONE_ANY_ELEMENTS_WITH_ALLOCATION_SITE_INFO;
+    }
+
     FastCloneShallowArrayStub stub(mode, length);
     __ CallStub(&stub);
   }