Modify testcase to merit a warning, though no warning is still printed!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16029 91177308-0d34-0410-b5e6-96231b3b80d8

test/Transforms/FunctionResolve/2003-10-21-GlobalTypeDifference.ll

 ; RUN: llvm-as < %s | opt -funcresolve -disable-output 2>&1 | grep WARNING
 
-%X = external global int
-%Z = global int* %X
+%X = external global {long, int }
+%Z = global {long, int} * %X
 
 %X = global float 1.0
 %Y = global float* %X