Fixing cpplint readability/check issues

Change-Id: Ia81db7238b4a13ff2e585aaac9d5e3e91df1e3e0
diff --git a/compiler/dex/mir_graph.cc b/compiler/dex/mir_graph.cc
index c2ee8e8..90e68ab 100644
--- a/compiler/dex/mir_graph.cc
+++ b/compiler/dex/mir_graph.cc
@@ -543,7 +543,7 @@
   if (current_method_ == 0) {
     DCHECK(entry_block_ == NULL);
     DCHECK(exit_block_ == NULL);
-    DCHECK(num_blocks_ == 0);
+    DCHECK_EQ(num_blocks_, 0);
     entry_block_ = NewMemBB(kEntryBlock, num_blocks_++);
     exit_block_ = NewMemBB(kExitBlock, num_blocks_++);
     block_list_.Insert(entry_block_);