don't emit the symbol name twice for local bss and common

symbols.  For example, don't emit:
        .comm   _i,4,2                  ## @i
                                        ## @i

instead emit:
        .comm   _i,4,2                  ## @i



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130192 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/AsmPrinter/AsmPrinter.cpp

@@ -289,12 +289,6 @@ void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
   if (GVKind.isCommon() || GVKind.isBSSLocal()) {
     if (Size == 0) Size = 1;   // .comm Foo, 0 is undefined, avoid it.
 
-    if (isVerbose()) {
-      WriteAsOperand(OutStreamer.GetCommentOS(), GV,
-                     /*PrintType=*/false, GV->getParent());
-      OutStreamer.GetCommentOS() << '\n';
-    }
-
     // Handle common symbols.
     if (GVKind.isCommon()) {
       unsigned Align = 1 << AlignLog;

test/CodeGen/ARM/2010-12-15-elf-lcomm.ll

@@ -10,7 +10,7 @@
 @STRIDE = internal global i32 8
 
 ; ASM:          .type   array00,%object         @ @array00
-; ASM-NEXT:     .lcomm  array00,80              @ @array00
+; ASM-NEXT:     .lcomm  array00,80
 ; ASM-NEXT:     .type   _MergedGlobals,%object  @ @_MergedGlobals