R4: Addressing review comments

Author: anchuraj

flang/test/Driver/lto-bc.f90

@@ -12,6 +12,9 @@
 ! CHECK-NOT: ^{{.*}} = blockcount:
 
 ! RUN: %flang -flto=thin %s -c -o - | llvm-dis -o - | FileCheck %s --check-prefix=THIN
+! THIN: define void @_QQmain()
+! THIN-NEXT:  ret void
+! THIN-NEXT: }
 ! THIN-NOT: !{{.*}} = !{i32 1, !"ThinLTO", i32 0}
 ! THIN-NOT: ^{{.*}} = module:
 ! THIN-NOT: ^{{.*}} = gv: (name: