Bug 444213: Move notification from CodeTypeStore to CodeService

https://bugs.eclipse.org/bugs/show_bug.cgi?id=444213

(cherry picked from commit d12ee0a9b33b04f0b4c354b609af9cd8924d1e8e)

Change-Id: I740538c0d039f6dbb9343e0c1a15c0aa7f2a0445
Reviewed-on: https://git.eclipse.org/r/38753
Tested-by: Hudson CI
Reviewed-by: Jeremie Bresson <jbr@bsiag.com>