Update NaCl's generator to support new wait APIs.

mojo/public/c/system/tests/core_unittest_pure_c.c

Index: mojo/public/c/system/tests/core_unittest_pure_c.c
diff --git a/mojo/public/c/system/tests/core_unittest_pure_c.c b/mojo/public/c/system/tests/core_unittest_pure_c.c
index bb00927c3b664870b6c36daa4b1b5fa59d4178f6..74cc17db0c3ef97397fcad3b2eaf653b1290d51d 100644
--- a/mojo/public/c/system/tests/core_unittest_pure_c.c
+++ b/mojo/public/c/system/tests/core_unittest_pure_c.c
@@ -68,7 +68,12 @@ const char* MinimalCTest(void) {
 
   // "Deadline exceeded" doesn't apply to a single handle, so this should leave
   // |result_index| untouched.
+#if defined(__native_client__)
+  // The NaCl syscall wrapper currently writes to all its outputs.

[Mark Seaborn, 2014/12/08 22:24:12]

Should there be a TODO here?

[Nick Bray (chromium), 2014/12/09 22:14:31]

What should be done here is currently under discussion with vtl.

+  EXPECT_EQ(0u, result_index);
+#else
   EXPECT_EQ(123u, result_index);
+#endif
   EXPECT_EQ(MOJO_HANDLE_SIGNAL_WRITABLE, states[0].satisfied_signals);
   EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE |
             MOJO_HANDLE_SIGNAL_PEER_CLOSED,