Changed d8 to print exception stack traces like samples/shell.cc.

Review URL: http://codereview.chromium.org/7060006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7986 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/d8.cc

@@ -266,6 +266,11 @@ void Shell::ReportException(v8::TryCatch* try_catch) {
       printf("^");
     }
     printf("\n");
+    v8::String::Utf8Value stack_trace(try_catch->StackTrace());
+    if (stack_trace.length() > 0) {
+      const char* stack_trace_string = ToCString(stack_trace);
+      printf("%s\n", stack_trace_string);
+    }
   }
 }
 
@@ -791,6 +796,8 @@ int Shell::Main(int argc, char* argv[]) {
 }  // namespace v8
 
 
+#ifndef GOOGLE3
 int main(int argc, char* argv[]) {
   return v8::Shell::Main(argc, argv);
 }
+#endif