Revert of [turbofan] Run everything after representation selection concurrently.

src/handles.h

Index: src/handles.h
diff --git a/src/handles.h b/src/handles.h
index ab8ed0920a4c637b6c0bc67775c801ee287f2ec1..1f97d6ff7e6d95c76b521baf45938e5f1c5f8243 100644
--- a/src/handles.h
+++ b/src/handles.h
@@ -42,10 +42,6 @@
   }
 
   V8_INLINE bool is_null() const { return location_ == nullptr; }
-
-  // Returns the raw address where this handle is stored. This should only be
-  // used for hashing handles; do not ever try to dereference it.
-  V8_INLINE Address address() const { return bit_cast<Address>(location_); }
 
  protected:
   // Provides the C++ dereference operator.
@@ -136,14 +132,14 @@
   // Provide function object for location equality comparison.
   struct equal_to : public std::binary_function<Handle<T>, Handle<T>, bool> {
     V8_INLINE bool operator()(Handle<T> lhs, Handle<T> rhs) const {
-      return lhs.address() == rhs.address();
+      return lhs.location() == rhs.location();
     }
   };
 
   // Provide function object for location hashing.
   struct hash : public std::unary_function<Handle<T>, size_t> {
     V8_INLINE size_t operator()(Handle<T> const& handle) const {
-      return base::hash<void*>()(handle.address());
+      return base::hash<void*>()(handle.location());
     }
   };