Address comments from mikaelholmen

Author: kyulee-com

llvm/test/ThinLTO/AArch64/cgdata-merge-crash.ll

@@ -0,0 +1,6 @@
+; This test checks if the global merge func pass should not build module summary.
+
+; RUN: opt --passes=global-merge-func %s -o /dev/null
+
+@0 = global { { ptr, i32, i32 } } { { ptr, i32, i32 } { ptr null, i32 19, i32 5 } }
+@1 = global { { ptr, i32, i32 } } { { ptr, i32, i32 } { ptr null, i32 22, i32 5 } }