Bug 444213: Move notification from CodeTypeStore to CodeService

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

Change-Id: I740538c0d039f6dbb9343e0c1a15c0aa7f2a0445
Reviewed-on: https://git.eclipse.org/r/38741
Tested-by: Hudson CI
Reviewed-by: Jeremie Bresson <jbr@bsiag.com>