actually test malloc/free from InitLateMaybeRecursive

This days compilers ~always optimize out free(malloc(N)) to nothing.

src/static_vars.cc

@@ -141,12 +141,6 @@ void Static::InitLateMaybeRecursive() {
     CentralCacheUnlockAll,  // parent calls after fork
     CentralCacheUnlockAll); // child calls after fork
 #endif
-
-#ifndef NDEBUG
-  // pthread_atfork above may malloc sometimes. Lets ensure we test
-  // that malloc works from here.
-  free(malloc(1));
-#endif
 }
 
 }  // namespace tcmalloc

src/thread_cache.cc

@@ -299,6 +299,12 @@ void ThreadCache::InitModule() {
   // We do "late" part of initialization without holding lock since
   // there is chance it'll recurse into malloc
   Static::InitLateMaybeRecursive();
+
+#ifndef NDEBUG
+  // pthread_atfork above may malloc sometimes. Lets ensure we test
+  // that malloc works from here.
+  (operator delete)((operator new)(1));
+#endif
 }
 
 void ThreadCache::InitTSD() {