AAPT2 aggressively processed xml nodes and regressed from the behavior
of AAPT. This change restores AAPT's processing of xml nodes with
quotations.
Bug: 71805084
Test: Created tests in XmlFlattener_test.cpp and ran the test in the
Android Studio project given in the bug
Change-Id: Idedb4f1002e9fd705ceb5feae35289235b754b02
Compiled Strings (previously not encountered) in an XML resource
were using a different StringPool than the one being referred to
in the XmlFlattener, and so the indices were all wrong.
Bug: 72700446
Test: make aapt2_tests
Change-Id: I663924f8fad50fd4c69cfa196318dc63fb641a25