Remove no-zone versions of intersection and union.

src/compiler/typer.cc

 // 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.
 
 #include "src/compiler/typer.h"
 
 #include "src/base/flags.h"
 #include "src/base/lazy-instance.h"
 #include "src/bootstrapper.h"
 #include "src/compiler/common-operator.h"
@@ skipping 241 matching lines @@
   Reduction UpdateBounds(Node* node, Bounds current) {
     if (NodeProperties::IsTyped(node)) {
       // Widen the bounds of a previously typed node.
       Bounds previous = NodeProperties::GetBounds(node);
       if (node->opcode() == IrOpcode::kPhi) {
         // Speed up termination in the presence of range types:
         current.upper = Weaken(node, current.upper, previous.upper);
         current.lower = Weaken(node, current.lower, previous.lower);
       }
 
-      // Types should not get less precise.
       DCHECK(previous.lower->Is(current.lower));
       DCHECK(previous.upper->Is(current.upper));
 
       NodeProperties::SetBounds(node, current);
       if (!(previous.Narrows(current) && current.Narrows(previous))) {
         // If something changed, revisit all uses.
         return Changed(node);
       }
       return NoChange();
     } else {
@@ skipping 844 matching lines @@
 
 
 Type* Typer::Visitor::JSTypeOfTyper(Type* type, Typer* t) {
   Factory* const f = t->isolate()->factory();
   if (type->Is(Type::Boolean())) {
     return Type::Constant(f->boolean_string(), t->zone());
   } else if (type->Is(Type::Number())) {
     return Type::Constant(f->number_string(), t->zone());
   } else if (type->Is(Type::Symbol())) {
     return Type::Constant(f->symbol_string(), t->zone());
-  } else if (type->Is(Type::Union(Type::Undefined(), Type::Undetectable()))) {
+  } else if (type->Is(Type::Union(Type::Undefined(), Type::Undetectable(),
+                                  t->zone()))) {
     return Type::Constant(f->undefined_string(), t->zone());
   } else if (type->Is(Type::Null())) {
     return Type::Constant(f->object_string(), t->zone());
   }
   return Type::InternalizedString();
 }
 
 
 Bounds Typer::Visitor::TypeJSTypeOf(Node* node) {
   return TypeUnaryOp(node, JSTypeOfTyper);
@@ skipping 1155 matching lines @@
       TYPED_ARRAYS(TYPED_ARRAY_CASE)
 #undef TYPED_ARRAY_CASE
     }
   }
   return Type::Constant(value, zone());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8