Namespacify.

llvm-svn: 120146
diff --git a/llvm/lib/CodeGen/RegAllocBasic.cpp b/llvm/lib/CodeGen/RegAllocBasic.cpp
index 76c243c..6af5e6c 100644
--- a/llvm/lib/CodeGen/RegAllocBasic.cpp
+++ b/llvm/lib/CodeGen/RegAllocBasic.cpp
@@ -56,6 +56,8 @@
 VerifyRegAlloc("verify-regalloc",
                cl::desc("Verify live intervals before renaming"));
 
+namespace {
+
 class PhysicalRegisterDescription : public AbstractRegisterDescription {
   const TargetRegisterInfo *tri_;
 public:
@@ -63,8 +65,6 @@
   virtual const char *getName(unsigned reg) const { return tri_->getName(reg); }
 };
 
-namespace {
-
 /// RABasic provides a minimal implementation of the basic register allocation
 /// algorithm. It prioritizes live virtual registers by spill weight and spills
 /// whenever a register is unavailable. This is not practical in production but