Enabled verification in the compiler and some other verifier fixes.

The verifier still needs to be able to continue execution after it fails
to resolve a class or method. The structure for that doesn't exist yet.

Change-Id: Ie32f6f9971fed02b645ba715bc5164f86f70f1c6
diff --git a/src/compiler.h b/src/compiler.h
index 958d9ab..5735c6b 100644
--- a/src/compiler.h
+++ b/src/compiler.h
@@ -35,6 +35,9 @@
   void Resolve(const ClassLoader* class_loader);
   void ResolveDexFile(const ClassLoader* class_loader, const DexFile& dex_file);
 
+  void Verify(const ClassLoader* class_loader);
+  void VerifyDexFile(const ClassLoader* class_loader, const DexFile& dex_file);
+
   void Compile(const ClassLoader* class_loader);
   void CompileDexFile(const ClassLoader* class_loader, const DexFile& dex_file);
   void CompileClass(Class* klass);