Replace NULL with nullptr

Also fixed some lines that were too long, and a few other minor
details.

Change-Id: I6efba5fb6e03eb5d0a300fddb2a75bf8e2f175cb
diff --git a/runtime/verifier/dex_gc_map.cc b/runtime/verifier/dex_gc_map.cc
index cd0b137..c435f9f 100644
--- a/runtime/verifier/dex_gc_map.cc
+++ b/runtime/verifier/dex_gc_map.cc
@@ -49,7 +49,7 @@
   if (error_if_not_present) {
     LOG(ERROR) << "Didn't find reference bit map for dex_pc " << dex_pc;
   }
-  return NULL;
+  return nullptr;
 }
 
 }  // namespace verifier
diff --git a/runtime/verifier/dex_gc_map.h b/runtime/verifier/dex_gc_map.h
index d77ea65..03a7821 100644
--- a/runtime/verifier/dex_gc_map.h
+++ b/runtime/verifier/dex_gc_map.h
@@ -39,7 +39,7 @@
 class DexPcToReferenceMap {
  public:
   explicit DexPcToReferenceMap(const uint8_t* data) : data_(data) {
-    CHECK(data_ != NULL);
+    CHECK(data_ != nullptr);
   }
 
   // The total size of the reference bit map including header.
diff --git a/runtime/verifier/method_verifier.h b/runtime/verifier/method_verifier.h
index cd414c2..2914b7c 100644
--- a/runtime/verifier/method_verifier.h
+++ b/runtime/verifier/method_verifier.h
@@ -244,11 +244,11 @@
   bool HasFailures() const;
   const RegType& ResolveCheckedClass(uint32_t class_idx)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
-  // Returns the method of a quick invoke or nullptr if it cannot be found.
+  // Returns the method of a quick invoke or null if it cannot be found.
   mirror::ArtMethod* GetQuickInvokedMethod(const Instruction* inst, RegisterLine* reg_line,
                                            bool is_range, bool allow_failure)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
-  // Returns the access field of a quick field access (iget/iput-quick) or nullptr
+  // Returns the access field of a quick field access (iget/iput-quick) or null
   // if it cannot be found.
   ArtField* GetQuickFieldAccess(const Instruction* inst, RegisterLine* reg_line)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
@@ -585,7 +585,7 @@
    * Widening conversions on integers and references are allowed, but
    * narrowing conversions are not.
    *
-   * Returns the resolved method on success, nullptr on failure (with *failure
+   * Returns the resolved method on success, null on failure (with *failure
    * set appropriately).
    */
   mirror::ArtMethod* VerifyInvocationArgs(const Instruction* inst,
@@ -686,7 +686,7 @@
   // The dex PC of a FindLocksAtDexPc request, -1 otherwise.
   uint32_t interesting_dex_pc_;
   // The container into which FindLocksAtDexPc should write the registers containing held locks,
-  // nullptr if we're not doing FindLocksAtDexPc.
+  // null if we're not doing FindLocksAtDexPc.
   std::vector<uint32_t>* monitor_enter_dex_pcs_;
 
   // The types of any error that occurs.
diff --git a/runtime/verifier/method_verifier_test.cc b/runtime/verifier/method_verifier_test.cc
index f67adc1..3994536 100644
--- a/runtime/verifier/method_verifier_test.cc
+++ b/runtime/verifier/method_verifier_test.cc
@@ -31,7 +31,7 @@
  protected:
   void VerifyClass(const std::string& descriptor)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
-    ASSERT_TRUE(descriptor != NULL);
+    ASSERT_TRUE(descriptor != nullptr);
     Thread* self = Thread::Current();
     mirror::Class* klass = class_linker_->FindSystemClass(self, descriptor.c_str());
 
diff --git a/runtime/verifier/reg_type.h b/runtime/verifier/reg_type.h
index e4d2c3e..d08c937 100644
--- a/runtime/verifier/reg_type.h
+++ b/runtime/verifier/reg_type.h
@@ -707,7 +707,7 @@
   UnresolvedUninitializedRefType(const std::string& descriptor,
                                  uint32_t allocation_pc, uint16_t cache_id)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_)
-      : UninitializedType(NULL, descriptor, allocation_pc, cache_id) {
+      : UninitializedType(nullptr, descriptor, allocation_pc, cache_id) {
     if (kIsDebugBuild) {
       CheckInvariants();
     }
@@ -752,7 +752,7 @@
   UnresolvedUninitializedThisRefType(const std::string& descriptor,
                                      uint16_t cache_id)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_)
-      : UninitializedType(NULL, descriptor, 0, cache_id) {
+      : UninitializedType(nullptr, descriptor, 0, cache_id) {
     if (kIsDebugBuild) {
       CheckInvariants();
     }
@@ -808,7 +808,7 @@
  public:
   UnresolvedType(const std::string& descriptor, uint16_t cache_id)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_)
-      : RegType(NULL, descriptor, cache_id) {}
+      : RegType(nullptr, descriptor, cache_id) {}
 
   bool IsNonZeroReferenceTypes() const OVERRIDE;
 };
diff --git a/runtime/verifier/reg_type_cache-inl.h b/runtime/verifier/reg_type_cache-inl.h
index 9024a7d..b6f253b 100644
--- a/runtime/verifier/reg_type_cache-inl.h
+++ b/runtime/verifier/reg_type_cache-inl.h
@@ -30,7 +30,7 @@
 inline const art::verifier::RegType& RegTypeCache::GetFromId(uint16_t id) const {
   DCHECK_LT(id, entries_.size());
   const RegType* result = entries_[id];
-  DCHECK(result != NULL);
+  DCHECK(result != nullptr);
   return *result;
 }