Remove unused Zone argument from InitializeAstVisitor

src/typing-asm.cc

 // Copyright 2015 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/v8.h"
 
 #include "src/typing-asm.h"
 
 #include "src/ast.h"
 #include "src/codegen.h"
@@ skipping 25 matching lines @@
   do {                              \
     DCHECK(!HasStackOverflow());    \
     call;                           \
     if (HasStackOverflow()) return; \
     if (!valid_) return;            \
   } while (false)
 
 
 AsmTyper::AsmTyper(Isolate* isolate, Zone* zone, Script* script,
                    FunctionLiteral* root)
-    : script_(script),
+    : zone_(zone),
+      script_(script),
       root_(root),
       valid_(true),
       stdlib_types_(zone),
       stdlib_heap_types_(zone),
       stdlib_math_types_(zone),
       global_variable_type_(HashMap::PointersMatch,
                             ZoneHashMap::kDefaultHashMapCapacity,
                             ZoneAllocationPolicy(zone)),
       local_variable_type_(HashMap::PointersMatch,
                            ZoneHashMap::kDefaultHashMapCapacity,
                            ZoneAllocationPolicy(zone)),
       in_function_(false),
       building_function_tables_(false),
       cache_(kCache.Get()) {
-  InitializeAstVisitor(isolate, zone);
+  InitializeAstVisitor(isolate);
   InitializeStdlib();
 }
 
 
 bool AsmTyper::Validate() {
   VisitAsmModule(root_);
   return valid_ && !HasStackOverflow();
 }
 
 
@@ skipping 995 matching lines @@
     computed_type_->Print();
     PrintF("Expected type: ");
     expected_type_->Print();
 #endif
     FAIL(expr, msg);
   }
   expected_type_ = save;
 }
 }  // namespace internal
 }  // namespace v8