[Bug]: typeOf() API returns incorrect result for simple name ref in xml attribute access expr

[IMS94]

Description

Consider the following code:

    xml x5 = xml `<para id="greeting">Hello</para>`;
    string|error id = x5.io:;

Here, when we perform semanticModel.typeOf() on x5 in x5.io: expression, the result is string|error, not xml.

When investigated seems like the relevant BLangNode's derivedType is also set to string|error in this case.

Steps to Reproduce

No response

Affected Version(s)

2201.3.0

OS, DB, other environment details and versions

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Related area

-> Editor

Related issue(s) (optional)

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Suggested label(s) (optional)

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[IMS94]

In #38958, xml attribute access related test cases were disabled due to this

[dulajdilshan]

Checked this in 2201.3.1,

We get XMLTypeSymbol in typeOf for x5

And,
in later versions it gives null for null which is correct since x5 in x5.io: is not a complete expression (x5 here is a var-ref).

The original issue LS had was solved with expectedType API in Semantic Model.

Closing this as invalid

[github-actions]

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      - Reason/EngineeringMistake - The issue occurred due to a mistake made in the past.
      - Reason/Regression - The issue has introduced a regression.
      - Reason/MultipleComponentInteraction - Issue occured due to interactions in multiple components.
      - Reason/Complex - Issue occurred due to complex scenario.
      - Reason/Invalid - Issue is invalid.
      - Reason/Other - None of the above cases.