Review Request: Fix pretty printer for QString.

[Maciek Zarzycki]

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Review request for KDevelop.


Description
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The printer may be ran when the QString object is not yet initialized.
In this case we might get memory access violation resulting from undefined value of QString::size.
Wrap the printer inside try/except to prevent this.


This addresses bug 280201.
    http://bugs.kde.org/show_bug.cgi?id=280201


Diffs
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  debuggers/gdb/printers/qt4.py 51f3a11 

Diff: http://git.reviewboard.kde.org/r/102778/diff/diff


Testing
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Ran unit tests.


Thanks,

Maciek Zarzycki

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