Migrate UI test suite to JUnit 5 and add dependencies for JUnit 5 and

[vogella]

JUnit 4 interoperability

• Update UiTestSuite to use JUnit 5 @suite and @SelectClasses
• Add org.junit.jupiter.api, org.junit.platform.runner, and org.junit.vintage.engine as dependencies (with and without version range) in MANIFEST.MF
• Ensure both JUnit 5 and JUnit 4 tests can be run together
• Modernize test infrastructure for future compatibility

[github-actions]

Test Results

 1 827 files  +  3   1 827 suites  +3   1h 38m 34s ⏱️ - 3m 59s
 8 109 tests +184   7 697 ✅ ±0    412 💤 +184  0 ❌ ±0 
24 414 runs  +552  23 114 ✅ ±0  1 300 💤 +552  0 ❌ ±0 

Results for commit 6d797dd. ± Comparison against base commit 710a26a.

This pull request removes 1557 and adds 1741 tests. Note that renamed tests count towards both.

UiTestSuite org.eclipse.ui.internal.ide.ChooseWorkspaceDialogTests ‑ testFilterDuplicatedPaths
UiTestSuite org.eclipse.ui.internal.ide.DirectoryProposalContentAssistTestSuite org.eclipse.ui.internal.ide.DirectoryProposalContentAssistTest ‑ fileSeparatorOpensProposalPopup
UiTestSuite org.eclipse.ui.internal.ide.DirectoryProposalContentAssistTestSuite org.eclipse.ui.internal.ide.DirectoryProposalContentAssistTest ‑ opensProposalPopupWithSubfoldersAsProposals
UiTestSuite org.eclipse.ui.tests.StyledStringHighlighterTest ‑ testAll
UiTestSuite org.eclipse.ui.tests.StyledStringHighlighterTest ‑ testAstersisksAndEndTerminator
UiTestSuite org.eclipse.ui.tests.StyledStringHighlighterTest ‑ testAstersisksForGaps
UiTestSuite org.eclipse.ui.tests.StyledStringHighlighterTest ‑ testAstersisksForOneGap
UiTestSuite org.eclipse.ui.tests.StyledStringHighlighterTest ‑ testCapitalizedText
UiTestSuite org.eclipse.ui.tests.StyledStringHighlighterTest ‑ testCaseInsensitivity
UiTestSuite org.eclipse.ui.tests.StyledStringHighlighterTest ‑ testEndTerminator
…

DragTestSuite ‑ org.eclipse.ui.tests.dnd.Bug87211Test
DynamicPluginsTestSuite ‑ org.eclipse.ui.tests.dynamicplugins.BrowserTests
UiTestSuite ActivitiesTestSuite org.eclipse.ui.tests.activities.ActivityPreferenceTest ‑ testActivityPreference
UiTestSuite ActivitiesTestSuite org.eclipse.ui.tests.activities.DynamicTest ‑ testActivityListener
UiTestSuite ActivitiesTestSuite org.eclipse.ui.tests.activities.DynamicTest ‑ testActivityManagerListener
UiTestSuite ActivitiesTestSuite org.eclipse.ui.tests.activities.DynamicTest ‑ testActivityPatternBindings
UiTestSuite ActivitiesTestSuite org.eclipse.ui.tests.activities.DynamicTest ‑ testCategoryListener
UiTestSuite ActivitiesTestSuite org.eclipse.ui.tests.activities.DynamicTest ‑ testDynamicRegistry
UiTestSuite ActivitiesTestSuite org.eclipse.ui.tests.activities.DynamicTest ‑ testEnabledActivities
UiTestSuite ActivitiesTestSuite org.eclipse.ui.tests.activities.DynamicTest ‑ testIdentifiersListener
…

This pull request removes 95 skipped tests and adds 279 skipped tests. Note that renamed tests count towards both.

UiTestSuite org.eclipse.ui.internal.ide.DirectoryProposalContentAssistTestSuite org.eclipse.ui.internal.ide.DirectoryProposalContentAssistTest ‑ fileSeparatorOpensProposalPopup
UiTestSuite org.eclipse.ui.internal.ide.DirectoryProposalContentAssistTestSuite org.eclipse.ui.internal.ide.DirectoryProposalContentAssistTest ‑ opensProposalPopupWithSubfoldersAsProposals
UiTestSuite org.eclipse.ui.tests.activities.ActivitiesTestSuite org.eclipse.ui.tests.activities.MenusTest ‑ XXXtestMenuVisibilityWithCustomFactory
UiTestSuite org.eclipse.ui.tests.api.ApiTestSuite org.eclipse.ui.tests.api.IAggregateWorkingSetTest ‑ XXXtestWorkingSetSaveRestoreAggregates
UiTestSuite org.eclipse.ui.tests.api.ApiTestSuite org.eclipse.ui.tests.api.IDeprecatedWorkbenchPageTest ‑ XXXtestClose
UiTestSuite org.eclipse.ui.tests.api.ApiTestSuite org.eclipse.ui.tests.api.IDeprecatedWorkbenchPageTest ‑ XXXtestHideActionSet
UiTestSuite org.eclipse.ui.tests.api.ApiTestSuite org.eclipse.ui.tests.api.IDeprecatedWorkbenchPageTest ‑ XXXtestSaveAllEditors
UiTestSuite org.eclipse.ui.tests.api.ApiTestSuite org.eclipse.ui.tests.api.IDeprecatedWorkbenchPageTest ‑ XXXtestShowActionSet
UiTestSuite org.eclipse.ui.tests.api.ApiTestSuite org.eclipse.ui.tests.api.IFileEditorMappingTest ‑ testGetDefaultEditor
UiTestSuite org.eclipse.ui.tests.api.ApiTestSuite org.eclipse.ui.tests.api.IPageListenerTest ‑ testPageActivate
…

DragTestSuite ‑ org.eclipse.ui.tests.dnd.Bug87211Test
DynamicPluginsTestSuite ‑ org.eclipse.ui.tests.dynamicplugins.BrowserTests
UiTestSuite ActivitiesTestSuite org.eclipse.ui.tests.activities.MenusTest ‑ XXXtestMenuVisibilityWithCustomFactory
UiTestSuite ApiTestSuite org.eclipse.ui.tests.api.IAggregateWorkingSetTest ‑ XXXtestWorkingSetSaveRestoreAggregates
UiTestSuite ApiTestSuite org.eclipse.ui.tests.api.IDeprecatedWorkbenchPageTest ‑ XXXtestClose
UiTestSuite ApiTestSuite org.eclipse.ui.tests.api.IDeprecatedWorkbenchPageTest ‑ XXXtestHideActionSet
UiTestSuite ApiTestSuite org.eclipse.ui.tests.api.IDeprecatedWorkbenchPageTest ‑ XXXtestSaveAllEditors
UiTestSuite ApiTestSuite org.eclipse.ui.tests.api.IDeprecatedWorkbenchPageTest ‑ XXXtestShowActionSet
UiTestSuite ApiTestSuite org.eclipse.ui.tests.api.IFileEditorMappingTest ‑ testGetDefaultEditor
UiTestSuite ApiTestSuite org.eclipse.ui.tests.api.IPageListenerTest ‑ testPageActivate
…