The QML snapshot only ever contains valid Documents; to compile a list
of parser problems we need to get at the invalid documents.

To do that, the model manager now provides a Snapshot with up to date,
but potentially invalid documents. That should also be useful for other
things.

Change-Id: I67892f63771c221bf2fe2c2bf0240a0f4e523227
Reviewed-on: http://codereview.qt.nokia.com/3012


Reviewed-by: Fawzi Mohamed <fawzi.mohamed@nokia.com>

That means
import Foo 2.1
can resolve to
/path/Foo.2.1 or
/path/Foo.2 or
/path/Foo

Task-number: QTCREATORBUG-4607
Change-Id: Ie1efc5be2ca2ed3ccc130e8a662f94aed11bec1ax
Reviewed-on: http://codereview.qt.nokia.com/194


Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>
(cherry picked from commit 87420263)
Reviewed-on: http://codereview.qt.nokia.com/380


Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: hjk <qthjk@ovi.com>

That means
import Foo 2.1
can resolve to
/path/Foo.2.1 or
/path/Foo.2 or
/path/Foo

Task-number: QTCREATORBUG-4607
Change-Id: Ie1efc5be2ca2ed3ccc130e8a662f94aed11bec1a
Reviewed-on: http://codereview.qt.nokia.com/194


Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>

Task-number: QTCREATORBUG-4814

Change-Id: I8b73d583be1ee7183f4074bce49d5390e38631a2

Task-number: QTCREATORBUG-2306

Reviewed-by: hjk

Reviewed-by: Erik Verbruggen

* Bind::usesQmlPrototype is now significantly more performant
* type environments are no longer hashed by filename, but rather
  by Document *
* duplicate scope builds are avoided

Task-number: QTCREATORBUG-2835
Reviewed-by: Erik Verbruggen

Task-number: QTCREATORBUG-2733
Reviewed-by: Kai Koehne

Link now caches imports. That means importing the same library (say, Qt)
from more than one file no longer creates an importing namespace for
each one. Instead, a single one is created for the instance of Link.

To make this work, the type environment in ScopeChain has been given its
own type: Interpreter::TypeEnvironment. That has the added benefit of
being able to carry meta-information about imports. You can use
TypeEnvironment::importInfo(qmlComponentName) to get information about
the import node that caused the import of the component.

Don't use QMultiHash::values(key), it rebuilds the values list from
scratch for each lookup.

Reviewed-by: Roberto Raggi

Reviewed-by: Erik Verbruggen

Task-number: QTCREATORBUG-1421
Reviewed-by: Erik Verbruggen

When adding a new file, refreshing semantic errors in the open editor should
have worked. It now also works for removing existing files.

Done-with: Christian Kamm

When adding a new file, refreshing semantic errors in the open editor should
have worked. It now also works for removing existing files.

Done-with: Christian Kamm

Previously, fresh versions of a Document would be added to the
_documentsByPath QMultiHash without removing the old version first.
This means Link could pick up old versions of a Document.

Task-number: QTCREATORBUG-1418

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.

Reviewed-by: Erik Verbruggen

* Add SemanticHighlighter to QmlJSTextEditor to update the semantic info
  in a background thread.
* Add QmlJS::Check to run semantic checks on qml and js documents.
* Add a check for incorrect property names.
* Fix hoverhandler to show tool tips from extra selections over help
  tooltips.

There is no reason to store the Bind object in a QSharedPointer because the `binder' has the same
lifetime of its document.

Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>

Done with: Erik