fix: doNotSuggest for property and value completion

[p-spacek]

What does this PR do?

exclude doNotSuggest schema from autocompletion
doNotSuggest was already there but implemented only for the simple object properties.
This PR uses doNotSuggest also for other scenarios: anyOf, values

"anyOf":[
  {
     "$ref": "schema1",
     "doNotSuggest": true
   },
  {
     "$ref": "schema2",
   }
]

What issues does this PR fix or reference?

related to the previous unfinished PR for the deprecated property:
#833

Is it tested? How?

adds unit tests

[p-spacek]

Hello @msivasubramaniaan, can I ask you for a review, please?

[gorkem]

We do inherit the doNotSuggest property from vscode json language service. As far as I can see on the JSON land it only applies to properties. Although I think this is an interesting usage of it.

@aeschli Is this something interesting for vscode json language service too?

[aeschli]

Yes, if you want to make a PR against the json-language-service that would be great.
Note that doNotSuggest is internal and we don't want to advertise this. But if you can use it internally, why not.

[coveralls]

coverage: 84.193% (+0.02%) from 84.174%
when pulling 769f53f on jigx-com:fix/doNotSuggest-for-property-and-value-completion
into 7203630 on redhat-developer:main.

[p-spacek]

Yes, if you want to make a PR against the json-language-service that would be great. Note that doNotSuggest is internal and we don't want to advertise this. But if you can use it internally, why not.

Hi, I created PR for this functionality microsoft/vscode-json-languageservice#213
but I found a not-related issue probably, see the linked PR.