Fix 64-bit VS2010 build

src/deoptimizer.cc

 // Copyright 2013 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/accessors.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/disasm.h"
@@ skipping 450 matching lines @@
   // TODO(jarin) We should tolerate missing patch entry for the topmost frame.
   for (StackFrameIterator it(isolate, isolate->thread_local_top()); !it.done();
        it.Advance()) {
     StackFrame::Type type = it.frame()->type();
     if (type == StackFrame::OPTIMIZED) {
       Code* code = it.frame()->LookupCode();
       if (code->is_turbofanned() && code->marked_for_deoptimization()) {
         JSFunction* function =
             static_cast<OptimizedFrame*>(it.frame())->function();
         Address* pc_address = it.frame()->pc_address();
-        int pc_offset = *pc_address - code->instruction_start();
+        int pc_offset =
+            static_cast<int>(*pc_address - code->instruction_start());
         int new_pc_offset = FindPatchAddressForReturnAddress(code, pc_offset);
 
         if (FLAG_trace_deopt) {
           CodeTracer::Scope scope(isolate->GetCodeTracer());
           PrintF(scope.file(), "[patching stack address for function: ");
           function->PrintName(scope.file());
           PrintF(scope.file(), " (Pc offset %i -> %i)]\n", pc_offset,
                  new_pc_offset);
         }
 
@@ skipping 3187 matching lines @@
 }
 
 
 void DeoptimizedFrameInfo::Iterate(ObjectVisitor* v) {
   v->VisitPointer(BitCast<Object**>(&function_));
   v->VisitPointers(parameters_, parameters_ + parameters_count_);
   v->VisitPointers(expression_stack_, expression_stack_ + expression_count_);
 }
 
 } }  // namespace v8::internal