Infrastructure changes to support scoped symbols
Summary:
- import_project_symbols supports an optional extra field, which is the context of the symbol.
- Symbol query can take a symbol argument, either as a parameter or a URL component (so you can now jump nav to s Zerg/rush, for example).
- Conduit method not yet updated. Will do that later.
NOTE: Not providing a context is distinct from providing an empty
context, because an empty context stands for top-level context, i.e.
functions and classes for PHP. It will not find class methods, etc. It
is possible that we should use some weird token that could not normally
be a context name to stand in for empty context.
Test Plan: Do a bunch of symbol searches.
Reviewers: epriestley
Reviewed By: epriestley
CC: nh, aran, Korvin
Maniphest Tasks: T1602
Differential Revision: https://secure.phabricator.com/D3148