ART: Fix reporting initialized classes by CompilerDriver.

Fix a bug where the CompilerDriver was erroneously reporting
classes as initialized during AOT compilation when they were
not guaranteed to be initialized at runtime.

This fix prevents the Quick compiler from inlining calls to
static methods in classes that are not guaranteed to be
initialized, so that the runtime performs the initialization
required for correctness.

Bug: 21847756

(cherry picked from commit 07785bb98dc8bbe192970e0f4c2cafd338a8dc68)

Change-Id: I60c7361cb6e8f51be20a3cbfcae19f3240bdfbed
diff --git a/runtime/oat.h b/runtime/oat.h
index 604e161..000ae8e 100644
--- a/runtime/oat.h
+++ b/runtime/oat.h
@@ -32,7 +32,7 @@
 class PACKED(4) OatHeader {
  public:
   static constexpr uint8_t kOatMagic[] = { 'o', 'a', 't', '\n' };
-  static constexpr uint8_t kOatVersion[] = { '0', '6', '3', '\0' };
+  static constexpr uint8_t kOatVersion[] = { '0', '6', '4', '\0' };
 
   static constexpr const char* kImageLocationKey = "image-location";
   static constexpr const char* kDex2OatCmdLineKey = "dex2oat-cmdline";