[OpenACC] Fix verify lines from 8fc8051

Like a big dummy, I completely skipped running this test locally and
forgot it would need check lines.  *sigh*, Looks like SOMEONE has a case
of the Mondays!

Anyway, this patch fixes it by adding the proper verify lines.

Author: erichkeane

clang/test/SemaOpenACC/gh154008.cpp

@@ -1,3 +1,5 @@
 // RUN: %clang_cc1 %s -fopenacc -verify
 
+// expected-error@+2{{expected ';'}}
+// expected-error@+1{{blocks support disabled}}
 void *a = ^ { static int b };