Make several variable declarations static.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50696 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Utils/BasicInliner.cpp

@@ -27,7 +27,7 @@
 using namespace llvm;
 
 namespace {
-  cl::opt<unsigned>     
+  static cl::opt<unsigned>     
   BasicInlineThreshold("inline-threshold", cl::Hidden, cl::init(200),
                        cl::desc("Control the amount of basic inlining to perform (default = 200)"));
 }