Make several variable declarations static.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50696 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 15e3629..8c606b8 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -75,8 +75,8 @@
 ///
 //===---------------------------------------------------------------------===//
 namespace {
-  cl::opt<RegisterScheduler::FunctionPassCtor, false,
-          RegisterPassParser<RegisterScheduler> >
+  static cl::opt<RegisterScheduler::FunctionPassCtor, false,
+                 RegisterPassParser<RegisterScheduler> >
   ISHeuristic("pre-RA-sched",
               cl::init(&createDefaultScheduler),
               cl::desc("Instruction schedulers available (before register"