Bug 575893 - fixed CharSequence.toString contracts An implementation of CharSequence has to fullfill the CharSequence.toString contract. Change-Id: I23022218dba00c1e7c0ad32cfbfe358981481371 Signed-off-by: Joerg Kubitz <jkubitz-eclipse@gmx.de> Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.text/+/185262 Tested-by: Platform Bot <platform-bot@eclipse.org> Reviewed-by: Mickael Istria <mistria@redhat.com>