If simple ownership works then friendship is not required.

llvm-svn: 140169
diff --git a/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp b/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp
index acc36f0..ccf7e11 100644
--- a/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp
+++ b/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp
@@ -177,14 +177,13 @@
       for (int i = 0, e = Lines.size(); i != e; ++i)
         write(Lines[i]);
     }
-   private:
-    friend class GCOVBlock;
 
     GCOVLines(StringRef F, raw_ostream *os) 
       : Filename(F) {
       this->os = os;
     }
 
+   private:
     StringRef Filename;
     SmallVector<uint32_t, 32> Lines;
   };