[NFC][LLVM][IR] Fix namespace usage in several files (#161756)

- Move standalone functions/variables out of anonymous namespace and
make them static.
- Use `using namespace llvm` instead of wrapping all the code in a file
in `namespace llvm { }`.
- Restrict anonymous namespace to just class/struct/enum declarations.

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/IR/Value.cpp b/llvm/lib/IR/Value.cpp
index a347609..b775cbb 100644
--- a/llvm/lib/IR/Value.cpp
+++ b/llvm/lib/IR/Value.cpp
@@ -622,6 +622,7 @@ enum PointerStripKind {
   PSK_InBoundsConstantIndices,
   PSK_InBounds
 };
+} // end anonymous namespace
 
 template <PointerStripKind StripKind> static void NoopCallback(const Value *) {}
 
@@ -696,7 +697,6 @@ static const Value *stripPointerCastsAndOffsets(
 
   return V;
 }
-} // end anonymous namespace
 
 const Value *Value::stripPointerCasts() const {
   return stripPointerCastsAndOffsets<PSK_ZeroIndices>(this);