Add dynamic stack frame alignment to optimized functions with untagged doubles on the stack.

src/objects-debug.cc

Index: src/objects-debug.cc
diff --git a/src/objects-debug.cc b/src/objects-debug.cc
index bb384cb65c519b78fcf496a8024c303e2722a840..72d7f17b502055f2d8eae8d4b778994d4aa0f1a6 100644
--- a/src/objects-debug.cc
+++ b/src/objects-debug.cc
@@ -455,9 +455,8 @@ void Oddball::OddballVerify() {
   } else {
     ASSERT(number->IsSmi());
     int value = Smi::cast(number)->value();
-    // Hidden oddballs have negative smis.
-    const int kLeastHiddenOddballNumber = -4;
     ASSERT(value <= 1);
+    // Hidden oddballs have negative smis.
     ASSERT(value >= kLeastHiddenOddballNumber);
   }
 }