Remove DoubleRepresentation from globals.h

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index 6f103faabf01081532ad2cbfb46b2db309e82a60..85a974a5a3f24548148a4ebb40b670db7fa3c139 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -2161,9 +2161,8 @@ static inline int NumberCacheHash(Handle<FixedArray> cache,
   if (number->IsSmi()) {
     return Handle<Smi>::cast(number)->value() & mask;
   } else {
-    DoubleRepresentation rep(number->Number());
-    return
-        (static_cast<int>(rep.bits) ^ static_cast<int>(rep.bits >> 32)) & mask;
+    int64_t bits = bit_cast<int64_t>(number->Number());
+    return (static_cast<int>(bits) ^ static_cast<int>(bits >> 32)) & mask;
   }
 }