Add a test for common symbols in coff.

llvm-svn: 200803
diff --git a/llvm/test/Object/nm-trivial-object.test b/llvm/test/Object/nm-trivial-object.test
index 748d6f2..d13d217 100644
--- a/llvm/test/Object/nm-trivial-object.test
+++ b/llvm/test/Object/nm-trivial-object.test
@@ -10,6 +10,8 @@
 RUN:         | FileCheck %s -check-prefix macho
 RUN: llvm-nm %p/Inputs/trivial-object-test.macho-x86-64 \
 RUN:         | FileCheck %s -check-prefix macho64
+RUN: llvm-nm %p/Inputs/common.coff-i386 \
+RUN:         | FileCheck %s -check-prefix COFF-COMMON
 
 COFF: 00000000 d .data
 COFF: 00000000 t .text
@@ -18,6 +20,15 @@
 COFF: 00000000 T {{_?}}main
 COFF:          U {{_?}}puts
 
+COFF-COMMON: 00000000 b .bss
+COFF-COMMON-NEXT: 00000000 d .data
+COFF-COMMON-NEXT: 00000000 d .drectve
+COFF-COMMON-NEXT: 00000000 n .file
+COFF-COMMON-NEXT: 00000000 r .rdata$zzz
+COFF-COMMON-NEXT: 00000000 t .text
+COFF-COMMON-NEXT:          C _a
+
+
 ELF-NOT:      U
 ELF:          U SomeOtherFunction
 ELF: 00000000 T main