bitbake: data: Add missing dependency handling of remove operator

A recipe variable handles its dependencies even on the "contains"
variables within the "inline Python expressions" like bb.utils.filter().
And it also handles those in the append operator correctly, but the
problem is that it does not so in the remove operator.

Fix it by adding the missing dependencies every time the remove
operator has been handled.
Also add a test case to check if the override operators handle
dependencies correctly.

(Bitbake rev: b90520eedb1dbc7f6a3928d089fe74fafb864eb5)

Signed-off-by: Insu Park <insu0.park@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/data.py

@@ -285,6 +285,7 @@ def build_dependencies(key, keys, mod_funcs, shelldeps, varflagsexcl, ignored_va
             value += "\n_remove of %s" % r
             deps |= r2.references
             deps = deps | (keys & r2.execs)
+            value = handle_contains(value, r2.contains, exclusions, d)
         return value
 
     deps = set()