Simplify SymLink creation in eclipse.core.tests

[HannesWell]

As discussed in #755 (comment).

[github-actions]

Test Results

    45 files   -   9      45 suites   - 9   34m 40s ⏱️ -7s
 4 513 tests  - 154   4 484 ✅  - 161   22 💤 ±0   7 ❌ + 7 
11 433 runs   - 462  11 263 ✅  - 479  153 💤 ±0  17 ❌ +17 

For more details on these failures, see this check.

Results for commit 85a1244. ± Comparison against base commit 7f435dc.

This pull request removes 154 tests.

org.eclipse.compare.tests.AsyncExecTests ‑ testCancelOnRequeue
org.eclipse.compare.tests.AsyncExecTests ‑ testQueueAdd
org.eclipse.compare.tests.AsyncExecTests ‑ testWorker
org.eclipse.compare.tests.CompareFileRevisionEditorInputTest ‑ testPrepareCompareInputWithNonLocalResourceTypedElements
org.eclipse.compare.tests.CompareUIPluginTest ‑ testFindContentViewerDescriptorForTextType_StreamAccessor
org.eclipse.compare.tests.CompareUIPluginTest ‑ testFindContentViewerDescriptor_TextType_NotStreamAccessor
org.eclipse.compare.tests.CompareUIPluginTest ‑ testFindContentViewerDescriptor_UnknownType
org.eclipse.compare.tests.ContentMergeViewerTest ‑ testFFFX
org.eclipse.compare.tests.ContentMergeViewerTest ‑ testFFTX
org.eclipse.compare.tests.ContentMergeViewerTest ‑ testFFXF
…

♻️ This comment has been updated with latest results.

[eclipse-platform-bot]

This pull request changes some projects for the first time in this development cycle.
Therefore the following files need a version increment:

runtime/tests/org.eclipse.core.tests.harness/META-INF/MANIFEST.MF

An additional commit containing all the necessary changes was pushed to the top of this PR's branch. To obtain these changes (for example if you want to push more changes) either fetch from your fork or apply the git patch.

Git patch

From 6f0780a1a73d48476dfb80fd369454a4c4bc1203 Mon Sep 17 00:00:00 2001
From: Eclipse Platform Bot <platform-bot@eclipse.org>
Date: Sat, 30 May 2026 04:27:31 +0000
Subject: [PATCH] Version bump(s) for 4.41 stream


diff --git a/runtime/tests/org.eclipse.core.tests.harness/META-INF/MANIFEST.MF b/runtime/tests/org.eclipse.core.tests.harness/META-INF/MANIFEST.MF
index 63dba3b3e1..624a2e0eb5 100644
--- a/runtime/tests/org.eclipse.core.tests.harness/META-INF/MANIFEST.MF
+++ b/runtime/tests/org.eclipse.core.tests.harness/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Eclipse Core Tests Harness
 Bundle-SymbolicName: org.eclipse.core.tests.harness;singleton:=true
-Bundle-Version: 3.17.500.qualifier
+Bundle-Version: 3.17.600.qualifier
 Bundle-Vendor: Eclipse.org
 Export-Package: org.eclipse.core.tests.harness;version="2.0",
  org.eclipse.core.tests.harness.session
-- 
2.54.0

Further information are available in Common Build Issues - Missing version increments.

[vogella]

@HannesWell I did the update of your PR, I hope that is ok. Your change looked just to good to be lost.

[HannesWell]

I did the update of your PR, I hope that is ok. Your change looked just to good to be lost.

Yes, of course. Thank you for updating it.

Unfortunately there are (still) failing tests with this and I didn't had the time to investigate the reasons (which is why this staled).
If you can have a look, any help is appreciated.