Function setLastResult

test/fixtures/snapshot/typescript.js:78984–78990

(state, type)

                return state.typeStack[state.stackIndex + 1];
            }
            function setLastResult(state, type) {
                // To reduce overhead, reuse the next stack entry to store the
                // last result. This avoids the overhead of an additional property
                // on `WorkArea` and reuses empty stack entries as we walk back up
                // the stack.
                state.typeStack[state.stackIndex + 1] = type;
            }
        }
        function checkGrammarNullishCoalesceWithLogicalExpression(node) {
            var left = node.left, operatorToken = node.operatorToken, right = node.right;