Fix odd declaration.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90138 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/Support/GraphWriter.h b/include/llvm/Support/GraphWriter.h
index d48dc78..28fa92f 100644
--- a/include/llvm/Support/GraphWriter.h
+++ b/include/llvm/Support/GraphWriter.h
@@ -149,7 +149,7 @@
     }
 
     std::string edgeSourceLabels;
-    raw_string_ostream::raw_string_ostream EdgeSourceLabels(edgeSourceLabels);
+    raw_string_ostream EdgeSourceLabels(edgeSourceLabels);
     bool hasEdgeSourceLabels = getEdgeSourceLabels(EdgeSourceLabels, Node);
 
     if (hasEdgeSourceLabels) {