Use an even more precise triple to avoid errors on Darwin, where we don't use comdats for inline entities.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@319835 91177308-0d34-0410-b5e6-96231b3b80d8

Author: zygoloid

test/Modules/var-templates.cpp

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fmodules -std=c++14 -emit-llvm %s -o - -triple %itanium_abi_triple | FileCheck %s
+// RUN: %clang_cc1 -fmodules -std=c++14 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s
 
 #pragma clang module build A
 module A {}