Duplicate declarative tests that use examples

As examples are moved from qtdeclarative to the qtdoc repository, we experience a loss of test coverage by tests that operate on the example sources. This includes the following list of tests:

tests/auto/quick/examples – Checks naming conventions used and also loads .qml files to the point of window.show() to ensure that they are syntactically correct and we don't crash.

tests/auto/qml/qqmlparser (qmlParser) – ensures that our QML parser works (not just the .js feeder) and verifies the integrity of the token locations in the AST.

tests/auto/qml/qmlmin – Ensures that our minifier works.

The proposal discussed briefly on IRC is to duplicate these tests into the qtdoc repository.