Revert "Unbreak build with clang."

src/liveedit.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/v8.h"
 
 #include "src/liveedit.h"
 
 #include "src/code-stubs.h"
@@ skipping 156 matching lines @@
 
   int get_value4(int i1, int i2) {
     return get_cell(i1, i2) & (kMaxUInt32 ^ kDirectionMask);
   }
   Direction get_direction(int i1, int i2) {
     return static_cast<Direction>(get_cell(i1, i2) & kDirectionMask);
   }
 
   static const int kDirectionSizeBits = 2;
   static const int kDirectionMask = (1 << kDirectionSizeBits) - 1;
-  static const int kEmptyCellValue = -1 << kDirectionSizeBits;
+  static const int kEmptyCellValue = ~0u << kDirectionSizeBits;
 
   // This method only holds static assert statement (unfortunately you cannot
   // place one in class scope).
   void StaticAssertHolder() {
     STATIC_ASSERT(MAX_DIRECTION_FLAG_VALUE < (1 << kDirectionSizeBits));
   }
 
   class ResultWriter {
    public:
     explicit ResultWriter(Comparator::Output* chunk_writer)
@@ skipping 1890 matching lines @@
 void LiveEditFunctionTracker::RecordRootFunctionInfo(Handle<Code> code) {
   isolate_->active_function_info_listener()->FunctionCode(code);
 }
 
 
 bool LiveEditFunctionTracker::IsActive(Isolate* isolate) {
   return isolate->active_function_info_listener() != NULL;
 }
 
 } }  // namespace v8::internal