llvm-cov: Don't use llvm::outs() in library code

Nothing in lib/ should be using llvm::outs() directly. Thread it in
from the caller instead.

llvm-svn: 226961
diff --git a/llvm/tools/llvm-cov/gcov.cpp b/llvm/tools/llvm-cov/gcov.cpp
index 12011ce..c0a48f8 100644
--- a/llvm/tools/llvm-cov/gcov.cpp
+++ b/llvm/tools/llvm-cov/gcov.cpp
@@ -80,7 +80,7 @@
 
   FileInfo FI(Options);
   GF.collectLineCounts(FI);
-  FI.print(SourceFile, GCNO, GCDA);
+  FI.print(llvm::outs(), SourceFile, GCNO, GCDA);
 }
 
 int gcovMain(int argc, const char *argv[]) {