[Bug]: Accessing Mutable Field of 'Isolated' Object Outside 'Lock' Statement in Lambda Function

[chiranSachintha]

Description

isolated class IsolatedClass {
    private int[][] arr;

    function init(int[] node) {
        self.arr = [];
        function v = function () {
            self.arr.push(node);
        };
    }

    function value(int[] node) {
        function v = function () {
            self.arr.push(node);
        };
    }
}

In the above example when attempting to access a mutable field of an 'isolated' object outside of a 'lock' statement within a lambda function it doesn't give any error. This can result in data integrity issues due to concurrent access without proper synchronization.

Steps to Reproduce

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Affected Version(s)

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OS, DB, other environment details and versions

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Related area

-> Compilation

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[chiranSachintha]

Related to #40757 (comment)