Revert "Revert "Upgrade to 5.0.71.48"" DO NOT MERGE

This reverts commit f2e3994fa5148cc3d9946666f0b0596290192b0e,
and updates the x64 makefile properly so it doesn't break that
build.

FPIIM-449

Change-Id: Ib83e35bfbae6af627451c926a9650ec57c045605
(cherry picked from commit 109988c7ccb6f3fd1a58574fa3dfb88beaef6632)
diff --git a/src/interpreter/constant-array-builder.h b/src/interpreter/constant-array-builder.h
index c882b1d..d7e41e3 100644
--- a/src/interpreter/constant-array-builder.h
+++ b/src/interpreter/constant-array-builder.h
@@ -12,13 +12,15 @@
 namespace v8 {
 namespace internal {
 
-class Factory;
 class Isolate;
 
 namespace interpreter {
 
-// A helper class for constructing constant arrays for the interpreter.
-class ConstantArrayBuilder final : public ZoneObject {
+// A helper class for constructing constant arrays for the
+// interpreter. Each instance of this class is intended to be used to
+// generate exactly one FixedArray of constants via the ToFixedArray
+// method.
+class ConstantArrayBuilder final BASE_EMBEDDED {
  public:
   // Capacity of the 8-bit operand slice.
   static const size_t kLowCapacity = 1u << kBitsPerByte;
@@ -32,7 +34,7 @@
   ConstantArrayBuilder(Isolate* isolate, Zone* zone);
 
   // Generate a fixed array of constants based on inserted objects.
-  Handle<FixedArray> ToFixedArray(Factory* factory) const;
+  Handle<FixedArray> ToFixedArray();
 
   // Returns the object in the constant pool array that at index
   // |index|.
@@ -84,6 +86,8 @@
     DISALLOW_COPY_AND_ASSIGN(ConstantArraySlice);
   };
 
+  IdentityMap<index_t>* constants_map() { return &constants_map_; }
+
   Isolate* isolate_;
   ConstantArraySlice idx8_slice_;
   ConstantArraySlice idx16_slice_;