Make common BitVector operations inline-able.

Change-Id: Ie25de4fae56c6712539f04172c42e3eff57df7ca
diff --git a/compiler/utils/arena_bit_vector.cc b/compiler/utils/arena_bit_vector.cc
index 39f7d18..de35f3d 100644
--- a/compiler/utils/arena_bit_vector.cc
+++ b/compiler/utils/arena_bit_vector.cc
@@ -16,11 +16,12 @@
 
 #include "arena_allocator.h"
 #include "arena_bit_vector.h"
+#include "base/allocator.h"
 
 namespace art {
 
 template <typename ArenaAlloc>
-class ArenaBitVectorAllocator : public Allocator {
+class ArenaBitVectorAllocator FINAL : public Allocator {
  public:
   explicit ArenaBitVectorAllocator(ArenaAlloc* arena) : arena_(arena) {}
   ~ArenaBitVectorAllocator() {}
@@ -37,7 +38,7 @@
   static void operator delete(void* p) {}  // Nop.
 
  private:
-  ArenaAlloc* arena_;
+  ArenaAlloc* const arena_;
   DISALLOW_COPY_AND_ASSIGN(ArenaBitVectorAllocator);
 };
 
diff --git a/compiler/utils/arena_bit_vector.h b/compiler/utils/arena_bit_vector.h
index 485ed76..c92658f 100644
--- a/compiler/utils/arena_bit_vector.h
+++ b/compiler/utils/arena_bit_vector.h
@@ -51,23 +51,23 @@
  * A BitVector implementation that uses Arena allocation.
  */
 class ArenaBitVector : public BitVector {
-  public:
-    ArenaBitVector(ArenaAllocator* arena, uint32_t start_bits, bool expandable,
-                   OatBitMapKind kind = kBitMapMisc);
-    ArenaBitVector(ScopedArenaAllocator* arena, uint32_t start_bits, bool expandable,
-                   OatBitMapKind kind = kBitMapMisc);
-    ~ArenaBitVector() {}
+ public:
+  ArenaBitVector(ArenaAllocator* arena, uint32_t start_bits, bool expandable,
+                 OatBitMapKind kind = kBitMapMisc);
+  ArenaBitVector(ScopedArenaAllocator* arena, uint32_t start_bits, bool expandable,
+                 OatBitMapKind kind = kBitMapMisc);
+  ~ArenaBitVector() {}
 
   static void* operator new(size_t size, ArenaAllocator* arena) {
-     return arena->Alloc(sizeof(ArenaBitVector), kArenaAllocGrowableBitMap);
+    return arena->Alloc(sizeof(ArenaBitVector), kArenaAllocGrowableBitMap);
   }
   static void* operator new(size_t size, ScopedArenaAllocator* arena) {
-     return arena->Alloc(sizeof(ArenaBitVector), kArenaAllocGrowableBitMap);
+    return arena->Alloc(sizeof(ArenaBitVector), kArenaAllocGrowableBitMap);
   }
   static void operator delete(void* p) {}  // Nop.
 
-  private:
-    const OatBitMapKind kind_;      // for memory use tuning. TODO: currently unused.
+ private:
+  const OatBitMapKind kind_;      // for memory use tuning. TODO: currently unused.
 };