Core: Fix tab order in several UI forms

For unknown reasons tab order in listed UI files was set incorrectly and
behave unexpectedly. Now tab order behave naturally.

Changes made for next objects:
Core::Internal::ExternalToolConfig (externaltoolconfig.ui),
In QtCreator: Tools -> Options -> Environment -> External Tools tab.

Core::Internal::GeneralSettings (generalsettings.ui),
In QtCreator: Tools -> Options -> Environment -> Interface tab

Core::Internal::MimeTypeMagicDialog (mimetypemagicdialog.ui),
In QtCreator: Tools -> Options -> Environment -> MIME Types tab, choose
any MIME type in "MIME Type" column,

Core::Internal::MimeTypeSettingsPage (mimetypesettingspage.ui), In
QtCreator: Tools -> Options -> Environment -> MIME Types tab

Core::Internal::SystemSettings (systemsettings.ui),
In QtCreator: Tools -> Options -> Environment -> System tab

Change-Id: I04aefcb5ad75ef8b23fa1de324d986b45d5347bd
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/plugins/coreplugin/dialogs/externaltoolconfig.ui

@@ -288,6 +288,19 @@
    </slots>
   </customwidget>
  </customwidgets>
+ <tabstops>
+  <tabstop>toolTree</tabstop>
+  <tabstop>addButton</tabstop>
+  <tabstop>removeButton</tabstop>
+  <tabstop>revertButton</tabstop>
+  <tabstop>description</tabstop>
+  <tabstop>arguments</tabstop>
+  <tabstop>outputBehavior</tabstop>
+  <tabstop>errorOutputBehavior</tabstop>
+  <tabstop>environmentButton</tabstop>
+  <tabstop>modifiesDocumentCheckbox</tabstop>
+  <tabstop>inputText</tabstop>
+ </tabstops>
  <resources/>
  <connections/>
 </ui>

src/plugins/coreplugin/generalsettings.ui

@@ -155,6 +155,12 @@
    <container>1</container>
   </customwidget>
  </customwidgets>
+ <tabstops>
+  <tabstop>colorButton</tabstop>
+  <tabstop>resetColorButton</tabstop>
+  <tabstop>languageBox</tabstop>
+  <tabstop>resetWarningsButton</tabstop>
+ </tabstops>
  <resources/>
  <connections/>
 </ui>

src/plugins/coreplugin/mimetypemagicdialog.ui

@@ -238,6 +238,15 @@
    </item>
   </layout>
  </widget>
+ <tabstops>
+  <tabstop>valueLineEdit</tabstop>
+  <tabstop>typeSelector</tabstop>
+  <tabstop>maskLineEdit</tabstop>
+  <tabstop>useRecommendedGroupBox</tabstop>
+  <tabstop>startRangeSpinBox</tabstop>
+  <tabstop>endRangeSpinBox</tabstop>
+  <tabstop>prioritySpinBox</tabstop>
+ </tabstops>
  <resources/>
  <connections>
   <connection>

src/plugins/coreplugin/mimetypesettingspage.ui

@@ -169,6 +169,16 @@
    </item>
   </layout>
  </widget>
+ <tabstops>
+  <tabstop>filterLineEdit</tabstop>
+  <tabstop>mimeTypesTreeView</tabstop>
+  <tabstop>resetButton</tabstop>
+  <tabstop>patternsLineEdit</tabstop>
+  <tabstop>magicHeadersTreeWidget</tabstop>
+  <tabstop>addMagicButton</tabstop>
+  <tabstop>editMagicButton</tabstop>
+  <tabstop>removeMagicButton</tabstop>
+ </tabstops>
  <resources/>
  <connections/>
 </ui>

src/plugins/coreplugin/systemsettings.ui

@@ -374,6 +374,21 @@
    </slots>
   </customwidget>
  </customwidgets>
+ <tabstops>
+  <tabstop>terminalComboBox</tabstop>
+  <tabstop>resetTerminalButton</tabstop>
+  <tabstop>externalFileBrowserEdit</tabstop>
+  <tabstop>resetFileBrowserButton</tabstop>
+  <tabstop>helpExternalFileBrowserButton</tabstop>
+  <tabstop>fileSystemCaseSensitivityChooser</tabstop>
+  <tabstop>reloadBehavior</tabstop>
+  <tabstop>autoSaveCheckBox</tabstop>
+  <tabstop>autoSaveInterval</tabstop>
+  <tabstop>autoSuspendCheckBox</tabstop>
+  <tabstop>autoSuspendMinDocumentCount</tabstop>
+  <tabstop>warnBeforeOpeningBigFiles</tabstop>
+  <tabstop>bigFilesLimitSpinBox</tabstop>
+ </tabstops>
  <resources>
   <include location="core.qrc"/>
  </resources>