Interpreter: strict nested ordinary calls inherit the enclosing receiver #3556

A bare call to a strict nested ordinary function inherits the receiver of its enclosing function in interpretation. The nested function should instead get its own undefined receiver.

"use strict";
const receiver = {};
function outer() {
    function inner() { return this; }
    return inner();
}
const result = outer.call(receiver);
console.log(result === undefined, result === receiver);

Node v22.23.2 prints true false. Interpreted SharpTS prints false true both on clean main at a3683d903 and on PR #3552 at 332e50d07. Run the classic JavaScript source with --no-tsconfig --noLib. The same interpreter behavior appears when the code is placed in an ECMAScript module. The explicit strict script establishes that the defect predates #3504's implicit module strictness change.

This is a nested ordinary call, separate from the top-level ECMAScript module receiver in #3548. Found while reviewing #3552.