Generalize test

Author: DougGregor

test/Profiler/coverage_closure_returns_never.swift

@@ -6,7 +6,7 @@
 // CHECK-NOT:  increment_profiler_counter
 // CHECK:      [[LOAD:%.*]] = load {{.*}} : $*Never
 // CHECK-NEXT: debug_value [[LOAD]] : $Never
-// CHECK-NEXT: unreachable
+// CHECK: unreachable
 
 func closure_with_fatal_error(_ arr: [Never]) {
 // CHECK-LABEL: sil_coverage_map {{.*}}// closure #1 (Swift.Never) -> Swift.Never