Function isSimpleLiteralEnumReference

test/fixtures/snapshot/typescript.js:88748–88753

(expr)

                    expr.operand.kind === 9 /* SyntaxKind.BigIntLiteral */;
        }
        function isSimpleLiteralEnumReference(expr) {
            if ((ts.isPropertyAccessExpression(expr) || (ts.isElementAccessExpression(expr) && isStringOrNumberLiteralExpression(expr.argumentExpression))) &&
                ts.isEntityNameExpression(expr.expression)) {
                return !!(checkExpressionCached(expr).flags & 1024 /* TypeFlags.EnumLiteral */);
            }
        }
        function checkAmbientInitializer(node) {
            var initializer = node.initializer;
            if (initializer) {