Fixed test memory leaks

samples/shell.cc

Index: samples/shell.cc
diff --git a/samples/shell.cc b/samples/shell.cc
index d85e6ea6e5238efedf65140f70d33d6a6ec2ae53..5c46c10a695cfe3fa422c0a06d3bf3f80dbb045c 100644
--- a/samples/shell.cc
+++ b/samples/shell.cc
@@ -45,7 +45,7 @@ v8::Handle<v8::String> ReadFile(const char* name);
 void ReportException(v8::TryCatch* handler);
 
 
-int main(int argc, char* argv[]) {
+int RunMain(int argc, char* argv[]) {
   v8::V8::SetFlagsFromCommandLine(&argc, argv, true);
   v8::HandleScope handle_scope;
   // Create a template for the global object.
@@ -95,11 +95,17 @@ int main(int argc, char* argv[]) {
         return 1;
     }
   }
-  if (run_shell) RunShell(context);
   return 0;
 }
 
 
+int main(int argc, char* argv[]) {
+  int result = RunMain(argc, argv);
+  v8::V8::Dispose();
+  return result;
+}
+
+
 // Extracts a C string from a V8 Utf8Value.
 const char* ToCString(const v8::String::Utf8Value& value) {
   return *value ? *value : "<string conversion failed>";