QueryBuilder: Support : in field values

Prior to this change, "field:foo:bar" is parsed as "field:foo", silently
discarding the ":bar". Worse, "field:foo:bar baz:quux" is _also_ parsed
as "field:foo", discarding not just part of the first term but the
entire second term.

Fix this by treating "SINGLE_WORD ':' fieldValue" as a valid definition
of a field value, and add tests.

This solution seems inelegant in general; it seems like we should be
able to concatenate the tokens together into a single AST node at the
Antlr level. Also, it doesn't work in all cases: it fails to parse field
values ending in ':'

I'm far from an Antlr expert and there may be a better/easier way to do
this. But this change is still strictly better than it was before, and
it sets an example of how to write tests for parser functionality.

Change-Id: If275623b3244b02f81114fb2997ba16ee1492a4f
4 files changed
tree: a34c9fbdd89af91f96d2959349eba02d1f450112
  1. .settings/
  2. antlr3/
  3. contrib/
  4. Documentation/
  5. java/
  6. javatests/
  7. lib/
  8. plugins/
  9. polygerrit-ui/
  10. prolog/
  11. prologtests/
  12. proto/
  13. resources/
  14. tools/
  15. webapp/
  16. .bazelproject
  17. .bazelrc
  18. .editorconfig
  19. .git-blame-ignore-revs
  20. .gitignore
  21. .gitmodules
  22. .mailmap
  23. .pydevproject
  24. BUILD
  25. COPYING
  26. INSTALL
  27. README.md
  28. SUBMITTING_PATCHES
  29. version.bzl
  30. WORKSPACE
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