Fix variable in recursive normalization

[naglis]

At 7.4.1 step 9.a.i, if normalized is a list containing item map, e.g.:

[
    {
        "type": [
            "Person"
        ],
        "name": "Herman Melville"
    }
]

it seems that context for the recursive normalize data call should be item["type"], not keyValue["item"]. In this case, context would be Person.

Same applies for step 9.b.i.

It appears item["type"] is being used in the reference implementation:

pub-manifest/experiments/manifest-to-internal-processor/manifestProcessor.js

Line 624 in 9a17073

var obj_context = getContext(normalized[i]);

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[iherman]

Marked as non substantive for IPR from ash-nazg.

[iherman]

It is difficult for me to 100% judge this based on my implementation (because it is in Typescript, the concept of "type" is more implicit based on the typing feature of TS), but I believe the proposed changes are indeed right.

[mattgarrish]

Looks right to me.

In 9.a.1, keyValue is the value of the key, so unless it's a map with a type it doesn't make any sense. It's the type of map that is sent in with each key/value pair. Same with 9.b.1.