[1.2.X] Fix with displaying param with map<anydata> subtypes as Payload params

[LakshanWeerasinghe]

Purpose

$subject

Fixes wso2/product-ballerina-integrator#1140

[Copilot]

Pull Request Overview

This PR fixes the display of parameters with map<anydata> subtypes as Payload parameters in the service model generator. The changes ensure that parameters that are subtypes of map<anydata> are correctly categorized as PAYLOAD parameters instead of QUERY parameters.

• Added logic to detect map<anydata> subtypes and classify them as payload parameters
• Updated test resources to include a new DateInfo record type and parameter
• Added constant for HTTP_PARAM_TYPE_PAYLOAD

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
main.bal	Added DateInfo parameter to anonReturn function and DateInfo record type definition
get_http_resource_model_6.json	Added test configuration for dateInfo parameter with PAYLOAD type
Constants.java	Added HTTP_PARAM_TYPE_PAYLOAD constant
HttpFunctionBuilder.java	Implemented logic to detect map subtypes and set them as payload parameters

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[NipunaRanasinghe]

LGTM