Remove duplication, split tests

The code move to libdexfile/dex/descriptors_names.cc apparently did not
remove the original code from runtime/utils.cc.  Fix that duplication
and all the header mentions needed.  Also, split the test files to go
along with the new locations for the code to be tested.

Bug: 22322814
Test: make -j 50 checkbuild
      make -j 50 test-art-host-gtest
      flash & boot marlin

Change-Id: Ie734672c4bca2c647d8016291f910b5608674545
diff --git a/compiler/common_compiler_test.cc b/compiler/common_compiler_test.cc
index 40a5370..a203133 100644
--- a/compiler/common_compiler_test.cc
+++ b/compiler/common_compiler_test.cc
@@ -23,6 +23,7 @@
 #include "base/enums.h"
 #include "class_linker.h"
 #include "compiled_method-inl.h"
+#include "dex/descriptors_names.h"
 #include "dex/quick_compiler_callbacks.h"
 #include "dex/verification_results.h"
 #include "driver/compiler_driver.h"
diff --git a/compiler/driver/compiler_driver.cc b/compiler/driver/compiler_driver.cc
index fb428b8..a6681ec 100644
--- a/compiler/driver/compiler_driver.cc
+++ b/compiler/driver/compiler_driver.cc
@@ -42,6 +42,7 @@
 #include "compiler.h"
 #include "compiler_callbacks.h"
 #include "compiler_driver-inl.h"
+#include "dex/descriptors_names.h"
 #include "dex/dex_file-inl.h"
 #include "dex/dex_file_annotations.h"
 #include "dex/dex_instruction-inl.h"
diff --git a/compiler/driver/dex_compilation_unit.cc b/compiler/driver/dex_compilation_unit.cc
index 28e68c9..2e315b5 100644
--- a/compiler/driver/dex_compilation_unit.cc
+++ b/compiler/driver/dex_compilation_unit.cc
@@ -17,6 +17,7 @@
 #include "dex_compilation_unit.h"
 
 #include "dex/code_item_accessors-inl.h"
+#include "dex/descriptors_names.h"
 #include "mirror/dex_cache.h"
 #include "utils.h"
 
diff --git a/compiler/optimizing/graph_visualizer.cc b/compiler/optimizing/graph_visualizer.cc
index bbf8c26..5ff31ce 100644
--- a/compiler/optimizing/graph_visualizer.cc
+++ b/compiler/optimizing/graph_visualizer.cc
@@ -27,6 +27,7 @@
 #include "code_generator.h"
 #include "data_type-inl.h"
 #include "dead_code_elimination.h"
+#include "dex/descriptors_names.h"
 #include "disassembler.h"
 #include "inliner.h"
 #include "licm.h"