Do not pass DexFile to ClassLinker::ResolveField*().

The DexFile can be easily retrieved from the DexCache,
so reduce the number of arguments that need to be passed.

Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Change-Id: I0579db64c63afea789c7c9ad8db81e37c9248e97
diff --git a/compiler/optimizing/instruction_builder.cc b/compiler/optimizing/instruction_builder.cc
index 4485f06..bce4de3 100644
--- a/compiler/optimizing/instruction_builder.cc
+++ b/compiler/optimizing/instruction_builder.cc
@@ -1484,8 +1484,7 @@
   Handle<mirror::ClassLoader> class_loader = dex_compilation_unit_->GetClassLoader();
   Handle<mirror::Class> compiling_class(hs.NewHandle(GetCompilingClass()));
 
-  ArtField* resolved_field = class_linker->ResolveField(*dex_compilation_unit_->GetDexFile(),
-                                                        field_idx,
+  ArtField* resolved_field = class_linker->ResolveField(field_idx,
                                                         dex_compilation_unit_->GetDexCache(),
                                                         class_loader,
                                                         is_static);