[turbofan] Normalize union of representation and range to a range.

src/types.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_TYPES_H_
 #define V8_TYPES_H_
 
 #include "src/conversions.h"
 #include "src/factory.h"
 #include "src/handles.h"
@@ skipping 597 matching lines @@
   static Limits ToLimits(bitset bits, Region* region);
 
   bool SimplyEquals(TypeImpl* that);
   template<class TypeHandle>
   bool SimplyEquals(TypeHandle that) { return this->SimplyEquals(*that); }
 
   static int AddToUnion(
       TypeHandle type, UnionHandle result, int size, Region* region);
   static int IntersectAux(TypeHandle type, TypeHandle other, UnionHandle result,
                           int size, Limits* limits, Region* region);
-  static TypeHandle NormalizeUnion(UnionHandle unioned, int size);
+  static TypeHandle NormalizeUnion(UnionHandle unioned, int size,
+                                   Region* region);
   static TypeHandle NormalizeRangeAndBitset(RangeHandle range, bitset* bits,
                                             Region* region);
 };
 
 
 // -----------------------------------------------------------------------------
 // Bitset types (internal).
 
 template<class Config>
 class TypeImpl<Config>::BitsetType : public TypeImpl<Config> {
@@ skipping 521 matching lines @@
   bool Narrows(BoundsImpl that) {
     return that.lower->Is(this->lower) && this->upper->Is(that.upper);
   }
 };
 
 typedef BoundsImpl<ZoneTypeConfig> Bounds;
 
 } }  // namespace v8::internal
 
 #endif  // V8_TYPES_H_