MIPS linkage name confuses gdb here. Generate and test DW_AT_name here.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86318 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGen/2009-10-20-GlobalDebug.c

@@ -1,4 +1,4 @@
 // RUN: clang -ccc-host-triple i386-apple-darwin10 -S -g -dA %s -o - | FileCheck %s
 int global;
-// CHECK: asciz  "global"                                    ## DW_AT_MIPS_linkage_name
+// CHECK: asciz  "global"                                    ## DW_AT_name
 int main() { return 0;}