Eliminate gpr_ int types - and insist on C99 variants instead
diff --git a/test/cpp/end2end/async_end2end_test.cc b/test/cpp/end2end/async_end2end_test.cc
index 279423a..af0b7fd 100644
--- a/test/cpp/end2end/async_end2end_test.cc
+++ b/test/cpp/end2end/async_end2end_test.cc
@@ -63,7 +63,7 @@
 
 namespace {
 
-void* tag(int i) { return (void*)(gpr_intptr)i; }
+void* tag(int i) { return (void*)(intptr_t)i; }
 
 #ifdef GPR_POSIX_SOCKET
 static int assert_non_blocking_poll(struct pollfd* pfds, nfds_t nfds,