Fix internal memory leak in Windows _Crt report.

We use "MemoryIsNotDeallocated" to aovid internal expected leak reported
in Windows _Crt report, like:

{
#ifdef _MSC_VER
	MemoryIsNotDeallocated memory_is_not_deeallocated;
#endif

	static ThreadIdToThreadLocals* map = new

ThreadIdToThreadLocals();
return map;

}

But int the above code, only "new ThreadIdToThreadLocals()" is
protected, if we invoke "insert()" function of the return value,
the memory allocated in "insert()" will be reported to _Crt report
also. This change try to fix this issue.