Add support for -Xverify:none mode.

This mode skips all verification and compilation.
Public bug: https://code.google.com/p/android/issues/detail?id=67664

Change-Id: Idd00ab8e9e46d129c02988b063c41a507e07bf5b
diff --git a/runtime/parsed_options.h b/runtime/parsed_options.h
index d6516a8..416bc78 100644
--- a/runtime/parsed_options.h
+++ b/runtime/parsed_options.h
@@ -80,6 +80,7 @@
   uint32_t profile_interval_us_;
   double profile_backoff_coefficient_;
   ProfilerClockSource profile_clock_source_;
+  bool verify_;
 
   static constexpr uint32_t kExplicitNullCheck = 1;
   static constexpr uint32_t kExplicitSuspendCheck = 2;