[jetgroovy] use Couple
[javaFx] use Couple
[java-psi-impl] use Couple
[java-psi-api] use Couple
[java-indexing-api] use Couple
[java-impl] use Couple
[java-analysis-impl] use Couple
[hg4idea] use Couple
[idea-ui] use Couple
[extensions] use Couple
[platform-impl] use Couple
[platform-api] use Couple
[properties] use Couple