[types] Use the TypeCache consistently for common types.

src/zone-type-cache.h

Index: src/zone-type-cache.h
diff --git a/src/zone-type-cache.h b/src/zone-type-cache.h
deleted file mode 100644
index f723997badd5b3161df2c137c515fe39e910d11c..0000000000000000000000000000000000000000
--- a/src/zone-type-cache.h
+++ /dev/null
@@ -1,81 +0,0 @@
-// 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_ZONE_TYPE_CACHE_H_
-#define V8_ZONE_TYPE_CACHE_H_
-
-
-#include "src/types.h"
-
-namespace v8 {
-namespace internal {
-
-class ZoneTypeCache final {
- private:
-  // This has to be first for the initialization magic to work.
-  Zone zone_;
-
- public:
-  ZoneTypeCache() = default;
-
-  Type* const kInt8 =
-      CreateNative(CreateRange<int8_t>(), Type::UntaggedSigned8());
-  Type* const kUint8 =
-      CreateNative(CreateRange<uint8_t>(), Type::UntaggedUnsigned8());
-  Type* const kUint8Clamped = kUint8;
-  Type* const kInt16 =
-      CreateNative(CreateRange<int16_t>(), Type::UntaggedSigned16());
-  Type* const kUint16 =
-      CreateNative(CreateRange<uint16_t>(), Type::UntaggedUnsigned16());
-  Type* const kInt32 = CreateNative(Type::Signed32(), Type::UntaggedSigned32());
-  Type* const kUint32 =
-      CreateNative(Type::Unsigned32(), Type::UntaggedUnsigned32());
-  Type* const kFloat32 = CreateNative(Type::Number(), Type::UntaggedFloat32());
-  Type* const kFloat64 = CreateNative(Type::Number(), Type::UntaggedFloat64());
-
-  Type* const kSingletonZero = CreateRange(0.0, 0.0);
-  Type* const kSingletonOne = CreateRange(1.0, 1.0);
-  Type* const kZeroOrOne = CreateRange(0.0, 1.0);
-  Type* const kZeroToThirtyTwo = CreateRange(0.0, 32.0);
-  Type* const kZeroish =
-      Type::Union(kSingletonZero, Type::MinusZeroOrNaN(), zone());
-  Type* const kInteger = CreateRange(-V8_INFINITY, V8_INFINITY);
-  Type* const kWeakint = Type::Union(kInteger, Type::MinusZeroOrNaN(), zone());
-
-#define TYPED_ARRAY(TypeName, type_name, TYPE_NAME, ctype, size) \
-  Type* const k##TypeName##Array = CreateArray(k##TypeName);
-  TYPED_ARRAYS(TYPED_ARRAY)
-#undef TYPED_ARRAY
-
- private:
-  Type* CreateArray(Type* element) { return Type::Array(element, zone()); }
-
-  Type* CreateArrayFunction(Type* array) {
-    Type* arg1 = Type::Union(Type::Unsigned32(), Type::Object(), zone());
-    Type* arg2 = Type::Union(Type::Unsigned32(), Type::Undefined(), zone());
-    Type* arg3 = arg2;
-    return Type::Function(array, arg1, arg2, arg3, zone());
-  }
-
-  Type* CreateNative(Type* semantic, Type* representation) {
-    return Type::Intersect(semantic, representation, zone());
-  }
-
-  template <typename T>
-  Type* CreateRange() {
-    return CreateRange(std::numeric_limits<T>::min(),
-                       std::numeric_limits<T>::max());
-  }
-
-  Type* CreateRange(double min, double max) {
-    return Type::Range(min, max, zone());
-  }
-
-  Zone* zone() { return &zone_; }
-};
-
-}  // namespace internal
-}  // namespace v8
-
-#endif  // V8_ZONE_TYPE_CACHE_H_