Fix lint error, and Makefile that could be confused with local files.

Change-Id: I780cc0d6593eadd6f82e1126d7ad445894af666c
diff --git a/compiler/optimizing/nodes.cc b/compiler/optimizing/nodes.cc
index b8b4a3b..498deba 100644
--- a/compiler/optimizing/nodes.cc
+++ b/compiler/optimizing/nodes.cc
@@ -122,7 +122,7 @@
 
 void HBasicBlock::AddInstruction(HInstruction* instruction) {
   DCHECK(instruction->GetBlock() == nullptr);
-  DCHECK(instruction->GetId() == -1);
+  DCHECK_EQ(instruction->GetId(), -1);
   instruction->SetBlock(this);
   instruction->SetId(GetGraph()->GetNextInstructionId());
   if (first_instruction_ == nullptr) {