Add upcall compiler.

Upcall compiler compiles the invoke stub for native-to-managed
method invocation.

Change-Id: I09fb1e4b3f166e8da5de73e8f39509cd9be6c152
diff --git a/src/compiler_llvm/compiler_llvm.h b/src/compiler_llvm/compiler_llvm.h
index 0de28f5..f39f686 100644
--- a/src/compiler_llvm/compiler_llvm.h
+++ b/src/compiler_llvm/compiler_llvm.h
@@ -27,6 +27,7 @@
 
 namespace art {
   class ClassLoader;
+  class CompiledInvokeStub;
   class CompiledMethod;
   class Compiler;
 }
@@ -83,6 +84,8 @@
                                    ClassLoader const* class_loader,
                                    DexFile const& dex_file);
 
+  CompiledInvokeStub* CreateInvokeStub(bool is_static, char const *shorty);
+
  private:
   Compiler* compiler_;