Fix generic jni issue in ArtMethod::GetQuickFrameInfo

The 64-bit host mode fails to start due to incorrect
detection of GetQuickGenericJniTrampoline.
The quick_code is 32-bit and taken from oat file, but
GetQuickGenericJniTrampoline returnf 0x7fffxx (64-bit)
address of trampoline and execution went to incorrect way.

Some clean-up.

Original Author: Dmitry Petrochenko <dmitry.petrochenko@intel.com>
Signed-off-by: Dmitry Petrochenko <dmitry.petrochenko@intel.com>
Signed-off-by: Serguei Katkov <serguei.i.katkov@intel.com>
Change-Id: I0952443b2a9f6833ad37ec373837ae208681fad7
diff --git a/runtime/class_linker.h b/runtime/class_linker.h
index 3dac6e5..db780d9 100644
--- a/runtime/class_linker.h
+++ b/runtime/class_linker.h
@@ -355,8 +355,8 @@
   }
 
   const void* GetQuickGenericJniTrampoline() const {
-      return quick_generic_jni_trampoline_;
-    }
+    return quick_generic_jni_trampoline_;
+  }
 
   const void* GetQuickResolutionTrampoline() const {
     return quick_resolution_trampoline_;
@@ -511,6 +511,9 @@
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
   bool LinkFields(const Handle<mirror::Class>& klass, bool is_static)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
+  void LinkCode(const Handle<mirror::ArtMethod>& method, const OatFile::OatClass* oat_class,
+                const DexFile& dex_file, uint32_t dex_method_index, uint32_t method_index)
+      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
 
 
   void CreateReferenceInstanceOffsets(const Handle<mirror::Class>& klass)