ART: Introduce NO_RETURN, Mark DoLongJump noreturn

Add NO_RETURN macro that adds C++11 noreturn attribute. Mark
DoLongJump methods as noreturn.

Change-Id: Ifde4318e370493237050d4c1349285a0382df23f
diff --git a/runtime/arch/arm/context_arm.h b/runtime/arch/arm/context_arm.h
index 1ca973e..5bdeda7 100644
--- a/runtime/arch/arm/context_arm.h
+++ b/runtime/arch/arm/context_arm.h
@@ -19,6 +19,7 @@
 
 #include "arch/context.h"
 #include "base/logging.h"
+#include "base/macros.h"
 #include "registers_arm.h"
 
 namespace art {
@@ -76,7 +77,7 @@
   void SetFPR(uint32_t reg, uintptr_t value) OVERRIDE;
 
   void SmashCallerSaves() OVERRIDE;
-  void DoLongJump() OVERRIDE;
+  NO_RETURN void DoLongJump() OVERRIDE;
 
  private:
   // Pointers to register locations, initialized to NULL or the specific registers below.