Project dependencies in testCompileOnly configuration are removed from eclipse classpath

[zml2008]

Describe the bug
Whin this plugin is applied, project dependencies declared in the testCompileOnly configuration are not provided to the eclipse classpath.

Removing the jmh plugin, or declaring the dependency in any other configuration (compileOnly, testImplementation, etc) causes the project dependency to show up properly on the test classpath.

To Reproduce
See reproducer at zml2008/gradle-issue-reproducer@2af9e99

Test by running the eclipseClasspath task -- the specific triggers for this issue should be commented in the buildscript.