Reduce nesting. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167551 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDeclAttr.cpp b/lib/Sema/SemaDeclAttr.cpp
index aef87c6..e326a20 100644
--- a/lib/Sema/SemaDeclAttr.cpp
+++ b/lib/Sema/SemaDeclAttr.cpp
@@ -4203,19 +4203,21 @@
 }
 
 static void handleInheritanceAttr(Sema &S, Decl *D, const AttributeList &Attr) {
-  if (S.LangOpts.MicrosoftExt) {
-    AttributeList::Kind Kind = Attr.getKind();
-    if (Kind == AttributeList::AT_SingleInheritance)
-      D->addAttr(
-          ::new (S.Context) SingleInheritanceAttr(Attr.getRange(), S.Context));
-    else if (Kind == AttributeList::AT_MultipleInheritance)
-      D->addAttr(
-          ::new (S.Context) MultipleInheritanceAttr(Attr.getRange(), S.Context));
-    else if (Kind == AttributeList::AT_VirtualInheritance)
-      D->addAttr(
-          ::new (S.Context) VirtualInheritanceAttr(Attr.getRange(), S.Context));
-  } else
+  if (!S.LangOpts.MicrosoftExt) {
     S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName();
+    return;
+  }
+
+  AttributeList::Kind Kind = Attr.getKind();
+  if (Kind == AttributeList::AT_SingleInheritance)
+    D->addAttr(
+        ::new (S.Context) SingleInheritanceAttr(Attr.getRange(), S.Context));
+  else if (Kind == AttributeList::AT_MultipleInheritance)
+    D->addAttr(
+        ::new (S.Context) MultipleInheritanceAttr(Attr.getRange(), S.Context));
+  else if (Kind == AttributeList::AT_VirtualInheritance)
+    D->addAttr(
+        ::new (S.Context) VirtualInheritanceAttr(Attr.getRange(), S.Context));
 }
 
 static void handlePortabilityAttr(Sema &S, Decl *D, const AttributeList &Attr) {