Bug 509263 - Fix warnings for missing enablement expression on start-up

This change adds empty enablement expressions where they are missing, in
order to prevent start-up warnings such as:

Enablement expression is missing for config provider for
org.eclipse.cdt.debug.core.coreBuildDescriptorType

Change-Id: Id7f2b6149230ddde24764772c5b67ff5eef28b65
Signed-off-by: Simeon Andreev <simeon.danailov.andreev@gmail.com>
6 files changed