idea: reuse PlatformLangPlugin.xml in JavaIdePlugin.xml instead of copying its content
idea: reuse PlatformLangPlugin.xml in JavaIdePlugin.xml instead of copying its content

This reduces duplication and make registration of components for IntelliJ IDEA consistent with other IDEs. This is also needed to properly extract Java support to a separate plugin (IDEA-195719).

allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community