Squish: Trying to stabilize tst_SCOM01

Change-Id: I895d763fdee4b15a36e109ee9f46d84635afa6a0
Reviewed-by: Christian Stenger <christian.stenger@digia.com>

tests/system/objects.map

 :*Qt Creator.Build Project_Core::Internal::FancyToolButton	{text='Build Project' type='Core::Internal::FancyToolButton' unnamed='1' visible='1' window=':Qt Creator_Core::Internal::MainWindow'}
+:*Qt Creator.Cancel Build_QToolButton	{text='Cancel Build' type='QToolButton' unnamed='1' visible='1' window=':Qt Creator_Core::Internal::MainWindow'}
 :*Qt Creator.Cancel_QPushButton	{text='Cancel' type='QPushButton' unnamed='1' visible='1' window=':Qt Creator_Core::Internal::MainWindow'}
 :*Qt Creator.Clear_QToolButton	{text='Clear' type='QToolButton' unnamed='1' visible='1' window=':Qt Creator_Core::Internal::MainWindow'}
 :*Qt Creator.Continue_Core::Internal::FancyToolButton	{text='Continue' type='Core::Internal::FancyToolButton' unnamed='1' visible='1' window=':Qt Creator_Core::Internal::MainWindow'}

tests/system/suite_SCOM/tst_SCOM01/test.py

@@ -49,6 +49,9 @@ def main():
         waitForSignal("{type='ProjectExplorer::BuildManager' unnamed='1'}", "buildQueueFinished(bool)")
         # check output if build successful
         ensureChecked(waitForObject(":Qt Creator_CompileOutput_Core::Internal::OutputPaneToggleButton"))
+        waitFor("object.exists(':*Qt Creator.Cancel Build_QToolButton')", 20000)
+        cancelBuildButton = findObject(':*Qt Creator.Cancel Build_QToolButton')
+        waitFor("not cancelBuildButton.enabled", 30000)
         compileOutput = waitForObject(":Qt Creator.Compile Output_Core::OutputWindow")
         if not test.verify(compileSucceeded(compileOutput.plainText),
                            "Verifying building of simple qt quick application."):