Migrate org.eclipse.jface.text.tests from JUnit4 to JUnit5

[vogella]

• Convert @RunWith(Suite.class) to @suite
• Convert @Suite.SuiteClasses to @SelectClasses
• Update imports from org.junit.runners to org.junit.platform.suite.api
• Add org.junit.jupiter.api and org.junit.platform.suite.api to Import-Package

[github-actions]

Test Results

 3 000 files  +1 390   3 000 suites  +1 390   2h 42m 28s ⏱️ + 1h 57m 27s
 8 215 tests ±    0   7 966 ✅ +    1  249 💤  -   1  0 ❌ ±0 
23 565 runs  +9 522  22 771 ✅ +9 036  794 💤 +486  0 ❌ ±0 

Results for commit 832009f. ± Comparison against base commit 2b482fa.

This pull request removes 283 and adds 283 tests. Note that renamed tests count towards both.

org.eclipse.jface.text.tests.DefaultPairMatcherTest ‑ testBoundaries
org.eclipse.jface.text.tests.DefaultPairMatcherTest ‑ testBug156426
org.eclipse.jface.text.tests.DefaultPairMatcherTest ‑ testBug377417
org.eclipse.jface.text.tests.DefaultPairMatcherTest ‑ testCloseMatches
org.eclipse.jface.text.tests.DefaultPairMatcherTest ‑ testCloseMatches1
org.eclipse.jface.text.tests.DefaultPairMatcherTest ‑ testIncompleteMatch
org.eclipse.jface.text.tests.DefaultPairMatcherTest ‑ testIncompleteMatch1
org.eclipse.jface.text.tests.DefaultPairMatcherTest ‑ testNesting
org.eclipse.jface.text.tests.DefaultPairMatcherTest ‑ testPartitioned
org.eclipse.jface.text.tests.DefaultPairMatcherTest ‑ testSimpleMatchDifferentMatchers
…

JFaceTextTestSuite AbstractReconcilerTest ‑ testCancellingWhenClean
JFaceTextTestSuite AbstractReconcilerTest ‑ testCancellingWhenRunning
JFaceTextTestSuite AbstractReconcilerTest ‑ testDirtyingWhenClean
JFaceTextTestSuite AbstractReconcilerTest ‑ testDirtyingWhenRunning
JFaceTextTestSuite AbstractReconcilerTest ‑ testInitialReconcile
JFaceTextTestSuite AbstractReconcilerTest ‑ testReplacingDocumentWhenClean
JFaceTextTestSuite AbstractReconcilerTest ‑ testReplacingDocumentWhenRunning
JFaceTextTestSuite AnnotationOnTabTest ‑ testTextBoundsMatchPaintedArea
JFaceTextTestSuite AnnotationRulerColumnTest ‑ testDrawWithEmptyProjection
JFaceTextTestSuite AsyncContentAssistTest ‑ testAsyncFailureStackOverflow
…

This pull request removes 2 skipped tests and adds 2 skipped tests. Note that renamed tests count towards both.

org.eclipse.jface.text.tests.MultiSelectionTest ‑ testViewer
org.eclipse.jface.text.tests.contentassist.FilteringAsyncContentAssistTests ‑ testFastCompletionsNotFilteredUntilLongComplitionsCalculated

JFaceTextTestSuite FilteringAsyncContentAssistTests ‑ testFastCompletionsNotFilteredUntilLongComplitionsCalculated
JFaceTextTestSuite MultiSelectionTest ‑ testViewer

♻️ This comment has been updated with latest results.