[turbofan] Remove the unused asm.js types from TypeCache.

src/compiler/typed-optimization.h

 // Copyright 2016 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_COMPILER_TYPED_OPTIMIZATION_H_
 #define V8_COMPILER_TYPED_OPTIMIZATION_H_
 
 #include "src/base/flags.h"
 #include "src/compiler/graph-reducer.h"
 
 namespace v8 {
 namespace internal {
 
 // Forward declarations.
 class CompilationDependencies;
 class Factory;
 class Isolate;
-class TypeCache;
 
 namespace compiler {
 
 // Forward declarations.
 class JSGraph;
 class SimplifiedOperatorBuilder;
+class TypeCache;
 
 class TypedOptimization final : public AdvancedReducer {
  public:
   // Flags that control the mode of operation.
   enum Flag {
     kNoFlags = 0u,
     kDeoptimizationEnabled = 1u << 0,
   };
   typedef base::Flags<Flag> Flags;
 
@@ skipping 29 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(TypedOptimization);
 };
 
 DEFINE_OPERATORS_FOR_FLAGS(TypedOptimization::Flags)
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_TYPED_OPTIMIZATION_H_