InlineSchemaContainer: fix bug with duplicate ids

Use a Map instead of an ImmutableMap.Builder to collect values (but still store
the final result in an ImmutableMap).

This means that if there are duplicate ids, the result is undefined, of
course...

Signed-off-by: Francis Galiegue <fgaliegue@gmail.com>
1.4.7

* Fix bug when using inline addressing: schemas with duplicate "id"s would
  trigger an IllegalArgumentException. Use a regular Map instead of an
  ImmutableMap.Builder.

Francis Galiegue (1):
      InlineSchemaContainer: fix bug with duplicate ids

Signed-off-by: Francis Galiegue <fgaliegue@gmail.com>