e.g. DEFINES+=bla on the qmakestep command line now work

Task-Nr: QTCREATORBUG-2091

Task-Nr: QTCREATORBUG-2222

Also some less significant improvements.

If we stay inside the node we keep the text marker

There's a UI in qml/customexec/cmake/qmake run configs for choosing the
debugger languages (C++ and QML). The default for all except .qmlproject
is only C++, so default debugging behavior is the same. However, if the
user wants to do simultaneous debugging with two languages, or only
debug QML, they can select the languages from Run Settings and it will
be remembered.

Reviewed-by: hunger

Merge-request: 172
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>

This code used two hacks: it created a class with
metaObject()->className() == "QTipLabel" to fool the code in Qt into
applying the style properly to this class.

But it did that by creating a class called QTipLabel. This works as
long as the class in Qt is hidden by symbol visibility. When symbol
visibility is disabled (for whatever reason), then Creator simply
crashes due to size mismatches and memory corruptions (virtual tables,
etc.)

This patch makes the class be called TextEditor::Internal::QTipLabel,
but fools moc into thinking it isn't.

A proper solution would be to simply override the meta object.

Signed-off-by: Leandro Melo <leandro.melo@nokia.com>

Reorder the tab widgets so the inspector show up by default
when debugging QML

Reviewed-by: Alessandro Portale

Fixes e5f60a95

It did more harm than good. Now, the auto detection is only done on
run control change - this is something that Creator could also remember.

Rubber-stamped-by: hjk

Initialize e.g. m_itemToNode before the view calls back to the model.

Reviewed-by: Roberto Raggi

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

Reviewed-by: Roberto Raggi

Did not work e.g. for projects where non-project files are loaded.

Task-Nr: QTCREATORBUG-2069

Apparently, the sender can still be null even though it's deleted
via deleteLater().

This is needed for sourve packages, but interferes with binary ones.

Task-Nr: QTCREATORBUG-1935

The code is technically incorrect and easy to fool.
See the comment in the patch.

Instead let the project explorer plugin handle that.

Reviewed-By: danimo

Task-Nr: QTCREATORBUG-2209

 * Make the name of the configuration about to be removed more visible.