Secure Socket parsing fails when additional fields exists in the config

[xlight05]

Description:

Consider the following scenario which fails to extract the config map.

listener http:Listener securedEP = new (9090,
    httpVersion = "1.1",
    secureSocket = {
        key: {
            path: "./security/ballerinaKeystore.p12",
            password: "ballerina"
        }
    }
);

However the following code works.

listener http:Listener securedEP = new (9090,
    secureSocket = {
        key: {
            path: "./security/ballerinaKeystore.p12",
            password: "ballerina"
        }
    },
    httpVersion = "1.1"
);

Steps to reproduce:

Affected Versions:

OS, DB, other environment details and versions:

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