ART: Move kDexNoIndex to dex_file_types.h

Define the constant with the types to allow lowering the dependency
on DexFile.

Test: m
Change-Id: I3c61421db45be96d2057e01b1a7825883d8bd178
diff --git a/compiler/optimizing/inliner.cc b/compiler/optimizing/inliner.cc
index 6567a3a..793e781 100644
--- a/compiler/optimizing/inliner.cc
+++ b/compiler/optimizing/inliner.cc
@@ -1236,7 +1236,7 @@
       const DexFile& caller_dex_file = *caller_compilation_unit_.GetDexFile();
       uint32_t dex_method_index = FindMethodIndexIn(
           method, caller_dex_file, invoke_instruction->GetDexMethodIndex());
-      if (dex_method_index == DexFile::kDexNoIndex) {
+      if (dex_method_index == dex::kDexNoIndex) {
         return false;
       }
       HInvokeVirtual* new_invoke = new (graph_->GetArena()) HInvokeVirtual(