AAPT2: Fixup namespace implementation

A few pieces were missing in the namespace mangling implementation.
Namespace aware libraries now work, along with R class generation.

Bug: 64706588
Test: make AaptTestNamespace_App
Change-Id: I12f78d6aa909e782c0faf7ceaa36058f2e6c864a
diff --git a/tools/aapt2/compile/InlineXmlFormatParser.cpp b/tools/aapt2/compile/InlineXmlFormatParser.cpp
index 857cdd5..a179260 100644
--- a/tools/aapt2/compile/InlineXmlFormatParser.cpp
+++ b/tools/aapt2/compile/InlineXmlFormatParser.cpp
@@ -69,10 +69,10 @@
     // Use an empty string for the compilation package because we don't want to default to
     // the local package if the user specified name="style" or something. This should just
     // be the default namespace.
-    Maybe<xml::ExtractedPackage> maybe_pkg = TransformPackageAlias(name.package, {});
+    Maybe<xml::ExtractedPackage> maybe_pkg = TransformPackageAlias(name.package);
     if (!maybe_pkg) {
-      context_->GetDiagnostics()->Error(DiagMessage(src) << "invalid namespace prefix '"
-                                                         << name.package << "'");
+      context_->GetDiagnostics()->Error(DiagMessage(src)
+                                        << "invalid namespace prefix '" << name.package << "'");
       error_ = true;
       return;
     }