openide/platform/platform-tests/testSnapshots/plugin-validator/content module in the same source module.json

{
  "intellij.angularJs" : {
    "name" : "intellij.angularJs",
    "package" : null,
    "descriptor" : "/intellij.angularJs/META-INF/plugin.xml",
    "content" : [ {
      "name" : "intellij.angularJs/diagram",
      "package" : "org.angularjs.diagram",
      "descriptor" : "/intellij.angularJs/intellij.angularJs.diagram.xml"
    } ]
  }
}