Add namespace handling in attribute values

Previously, you could only reference namespace prefixes in attribute names:

<View xmlns:appcompat="http://schemas.android.com/apk/res/android.support.v7.appcompat"
      appcompat:name="hey"
      ...

Now you can also reference them in resource names within an attribute value:

      ...
      android:text="@appcompat:string/confirm"
      ...

Which will be treated as "@android.support.v7.appcompat:string/confirm".

Change-Id: Ib076e867a990c80cf877a704eb77cd1ef0b23b52
diff --git a/tools/aapt2/Linker_test.cpp b/tools/aapt2/Linker_test.cpp
index 4d2d360..3c5b8b4 100644
--- a/tools/aapt2/Linker_test.cpp
+++ b/tools/aapt2/Linker_test.cpp
@@ -15,8 +15,8 @@
  */
 
 #include "Linker.h"
-#include "Resolver.h"
 #include "ResourceTable.h"
+#include "ResourceTableResolver.h"
 #include "ResourceValues.h"
 #include "Util.h"
 
@@ -31,7 +31,7 @@
         mTable = std::make_shared<ResourceTable>();
         mTable->setPackage(u"android");
         mTable->setPackageId(0x01);
-        mLinker = std::make_shared<Linker>(mTable, std::make_shared<Resolver>(
+        mLinker = std::make_shared<Linker>(mTable, std::make_shared<ResourceTableResolver>(
                 mTable, std::make_shared<android::AssetManager>()));
 
         // Create a few attributes for use in the tests.