[turbofan] Remove the representation dimension from Type.

test/cctest/types-fuzz.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 124 matching lines @@
   Type* Constant(Handle<i::Object> value) {
     return Type::Constant(value, zone_);
   }
 
   Type* Range(double min, double max) { return Type::Range(min, max, zone_); }
 
   Type* Union(Type* t1, Type* t2) { return Type::Union(t1, t2, zone_); }
 
   Type* Intersect(Type* t1, Type* t2) { return Type::Intersect(t1, t2, zone_); }
 
-  Type* Representation(Type* t) { return Type::Representation(t, zone_); }
-
   Type* Semantic(Type* t) { return Type::Semantic(t, zone_); }
 
   Type* Random() {
     return types[rng_->NextInt(static_cast<int>(types.size()))];
   }
 
   Type* Fuzz(int depth = 4) {
     switch (rng_->NextInt(depth == 0 ? 3 : 20)) {
       case 0: {  // bitset
         #define COUNT_BITSET_TYPES(type, value) + 1
@@ skipping 48 matching lines @@
  private:
   Zone* zone_;
   v8::base::RandomNumberGenerator* rng_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif