Add LLVM function declaration codegen.

Change-Id: I1ad54dd54ea73eba5ecc8ab17479fe161c308b88
diff --git a/src/compiler_llvm/method_compiler.h b/src/compiler_llvm/method_compiler.h
index 7b1154d..0edf322 100644
--- a/src/compiler_llvm/method_compiler.h
+++ b/src/compiler_llvm/method_compiler.h
@@ -102,6 +102,13 @@
   void EmitInstructions();
   void EmitInstruction(uint32_t dex_pc, Instruction const* insn);
 
+
+  // Code generation helper function
+
+  llvm::Value* EmitLoadMethodObjectAddr();
+
+  llvm::FunctionType* GetFunctionType(uint32_t method_idx, bool is_static);
+
 };