Removed the Isolate* field from literal nodes.

src/ast.cc

 // Copyright 2012 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/ast.h"
 
 #include <cmath>  // For isfinite.
 #include "src/builtins.h"
 #include "src/code-stubs.h"
 #include "src/contexts.h"
@@ skipping 1108 matching lines @@
     set_dont_crankshaft_reason(kCallToAJavaScriptRuntimeFunction);
   }
 }
 
 #undef REGULAR_NODE
 #undef DONT_OPTIMIZE_NODE
 #undef DONT_SELFOPTIMIZE_NODE
 #undef DONT_CACHE_NODE
 
 
-Handle<String> Literal::ToString() {
-  if (value_->IsString()) return value_->AsString()->string();
-  DCHECK(value_->IsNumber());
-  char arr[100];
-  Vector<char> buffer(arr, arraysize(arr));
-  const char* str;
-  if (value()->IsSmi()) {
-    // Optimization only, the heap number case would subsume this.
-    SNPrintF(buffer, "%d", Smi::cast(*value())->value());
-    str = arr;
-  } else {
-    str = DoubleToCString(value()->Number(), buffer);
-  }
-  return isolate_->factory()->NewStringFromAsciiChecked(str);
+uint32_t Literal::Hash() {
+  return raw_value()->IsString()
+             ? raw_value()->AsString()->hash()
+             : ComputeLongHash(double_to_uint64(raw_value()->AsNumber()));
 }
 
 
+// static
+bool Literal::Match(void* literal1, void* literal2) {
+  const AstValue* x = static_cast<Literal*>(literal1)->raw_value();
+  const AstValue* y = static_cast<Literal*>(literal2)->raw_value();
+  return (x->IsString() && y->IsString() && *x->AsString() == *y->AsString()) ||
+         (x->IsNumber() && y->IsNumber() && x->AsNumber() == y->AsNumber());
+}
+
+
 } }  // namespace v8::internal