Done-with: ckamm

Previously we just scanned every directory containing a qml file for
other qml files.

This makes import ".." work.

Reviewed-by: Erik Verbruggen

To solve import resolution issues on windows.

Reviewed-by: Roberto Raggi

Using canonical paths breaks with symlinked components. Also the editor
filename isn't canonical, so comparing them breaks.

This reverts commit efcdadd2.

Also change the filename->document map to a hash.

Reviewed-by: Roberto Raggi

Otherwise the paths may end up with ../ or /./ in them and confuse the
Qml import resolving.

Reviewed-by: Thomas Hartmann

Reviewed-by: ckamm

The Document thought it was a JS file as it doesn't have the .qml
extension.

Avoids bug where import errors would show up in all files.

Reviewed-by: Roberto Raggi

Previously, the actual enumerator values weren't read correctly.

Task-number: QTCREATORBUG-919
Reviewed-by: Roberto Raggi

Task-number: QTCREATORBUG-926
Reviewed-by: Erik Verbruggen

Task-number: QTCREATORBUG-874
Reviewed-by: Erik Verbruggen

Reviewed-by: Erik Verbruggen

However, it still re-reads for each use of Link. Needs to be optimized.

Reviewed-by: Roberto Raggi

* Fill the snapshot with files that could be imported.
* Implement package imports.

* The qmldir file is not parsed yet.

Reviewed-by: Erik Verbruggen

This bug manifested itself as not getting a tooltip and correct context
help for the type of the root object in a Qml file.

Reviewed-by: Erik Verbruggen

Reviewed-by: Erik Verbruggen

* The "Script" type is now implicitly available without imports.
* No errors for bindings inside a Connections element.

Reviewed-by: Roberto Raggi

Reviewed-by: Erik Verbruggen