Double slash comment `//` will be wrongly removed in the trailing position of the object attribute

🔎 Search Terms

• comment removal
• removeComments

🕗 Version & Regression Information

• This is the behavior in every version I tried.

⏯ Playground Link

https://www.typescriptlang.org/play?ts=5.2.2#code/KYDwDg9gTgLgBAYwgOwM7wGYQnAvHAbwCg5S4sIAuOAcgpoBo4B6ZuGACwEtVEIBbfsGTwA7lwA2EuACNgcKMH4QAbsAAmAOhJkZAQyjUa+qDRZtOPPoOFjJ0uXADWwMDCYyArmI4BPbQC+QA

💻 Code

export const foo = {
    foo: 'foo', // this comment will be removed, however this should be kept
    bar: 'bar' // this comment will be kept, works well
}

🙁 Actual behavior

export const foo = {
    foo: 'foo',
    bar: 'bar' // this comment will be kept, works well
}

🙂 Expected behavior

export const foo = {
    foo: 'foo', // this comment will be removed, however this should be kept
    bar: 'bar' // this comment will be kept, works well
}

Additional information about the issue

No response

首先跟踪 issue 中提到的 removeComments 行为，并在链接的 TypeScript Playground 中重现该案例。比较对象末尾属性在有和没有后续逗号时的注释处理方式。完成的标准是：保留所示的 foo 注释，同时现有的 bar 注释保持不变，并为该示例添加一个回归测试。