Make o.e.test Screenshots work when Platform is not there

[akurtakov]

Needed by SWT tests screenshoting.

[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:

eclipse.platform.releng/bundles/org.eclipse.test/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 16b23218001ee3adb4d0db7220bc6c8d915f9b6e Mon Sep 17 00:00:00 2001
From: Eclipse Platform Bot <platform-bot@eclipse.org>
Date: Tue, 23 Dec 2025 09:12:05 +0000
Subject: [PATCH] Version bump(s) for 4.39 stream


diff --git a/eclipse.platform.releng/bundles/org.eclipse.test/META-INF/MANIFEST.MF b/eclipse.platform.releng/bundles/org.eclipse.test/META-INF/MANIFEST.MF
index 33bb48d6f7..666cc1adbc 100644
--- a/eclipse.platform.releng/bundles/org.eclipse.test/META-INF/MANIFEST.MF
+++ b/eclipse.platform.releng/bundles/org.eclipse.test/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.test; singleton:=true
-Bundle-Version: 3.6.400.qualifier
+Bundle-Version: 3.6.500.qualifier
 Eclipse-BundleShape: dir
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin
-- 
2.52.0

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

[akurtakov]

The change to Screenshots I did was to allow tests that run standalone (like SWT running tests with maven surefire not tycho) to still save screenshots in "default" folder instead of failing when Platform (org.eclipse.core.runtime.jar) is not there.