While dot expansion is disabled when parsing percolator queries at index
time, as that would interfere with query parsing, we still use a wrapper parser
that is conservative about what methods it supports, assuming that
document parsing needs nextToken and not much more. Turns out that when
parsing queries instead, we need to support all the XContentParser
methods including map, list etc.
This commit adds a test for script score query parsing through document
parsing via percolator field mapper, and removes the limitations in the
wrapper parser when dots expansion is disabled.
b07feb507d