Now that the underlying issue is fixed, revert r180750 and r180722.

The cause of the windows failures was fixed by r180791. Revert to the state
after Sabre's original revert.

Original message:

revert r179735, it has no testcases, and doesn't really make sense.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180844 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/IR/Attributes.cpp b/lib/IR/Attributes.cpp
index 2443b34..4fe6f9d 100644
--- a/lib/IR/Attributes.cpp
+++ b/lib/IR/Attributes.cpp
@@ -483,16 +483,13 @@
   return 0;
 }
 
-std::string AttributeSetNode::getAsString(bool TargetIndependent,
-                                          bool InAttrGrp) const {
+std::string AttributeSetNode::getAsString(bool InAttrGrp) const {
   std::string Str;
   for (SmallVectorImpl<Attribute>::const_iterator I = AttrList.begin(),
          E = AttrList.end(); I != E; ++I) {
-    if (TargetIndependent || !I->isStringAttribute()) {
-      if (I != AttrList.begin())
-        Str += ' ';
-      Str += I->getAsString(InAttrGrp);
-    }
+    if (I != AttrList.begin())
+      Str += ' ';
+    Str += I->getAsString(InAttrGrp);
   }
   return Str;
 }
@@ -848,10 +845,10 @@
   return ASN ? ASN->getStackAlignment() : 0;
 }
 
-std::string AttributeSet::getAsString(unsigned Index, bool TargetIndependent,
+std::string AttributeSet::getAsString(unsigned Index,
                                       bool InAttrGrp) const {
   AttributeSetNode *ASN = getAttributes(Index);
-  return ASN ? ASN->getAsString(TargetIndependent, InAttrGrp) : std::string("");
+  return ASN ? ASN->getAsString(InAttrGrp) : std::string("");
 }
 
 /// \brief The attributes for the specified index are returned.