The $tab_root_map and $tab_parent_map variables in _menu_translate() should be unconditionally defined.

Follow-up from #907690-87: Breadcrumbs don't work for dynamic paths & local tasks #2

Problem/Motivation

The changes made to the _menu_translate() function by #907690-67 (Commit diff) included adding two new variables: $tab_root_map and $tab_parent_map. These variables are defined inside an if statement, but unconditionally referenced later. This clutters the watchdog table with two Undefined variable warnings for every page load.

Proposed resolution

The variables should be unconditionally defined.

Remaining tasks

This proposed patch needs to be reviewed and committed.

User interface changes

None.

API changes

None.