Rollup merge of #82311 - aDotInTheVoid:jsondocck-improvements, r=jyn514

Jsondocck improvements

Adds 2 new commands, ```@is``` and ```@set`.``

```@is``` works like ```@has`,`` except instead of checking if any value matches, it checks that there is exactly one value, and it matches. This allows more precise testing.

```@set``` gets a value, and saves it to be used later. This makes it possible to check that an item appears in the correct module.

Once this lands, the rest of the test suite can be upgraded to use these.

cc ``@CraftSpider``

 ``@rustbot`` modify labels: +T-rustdoc +A-rustdoc-json +A-testsuite

0 files changed, 0 insertions, 0 deletions