"No repeated property names" error in object literals is duplicated in strict mode

[Yuuki77]

improved the error messages when object property name is duplicated.
smaple

// @strict: false
const first = { a: 1, a: 2 }
class C {
    m() {
        const second = { a: 1, a: 2 }
        return second.a
    }
}

before

test.ts:3:23 - error TS2300: Duplicate identifier 'a'.

3 const first = { a: 1, a: 2 };
                        ~

test.ts:6:32 - error TS1117: An object literal cannot have multiple properties with the same name in strict mode.

6         const second = { a: 1, a: 2 };
                                 ~

test.ts:6:32 - error TS2300: Duplicate identifier 'a'.

6         const second = { a: 1, a: 2 };
                                 ~

[12:48:19 PM] Found 3 errors. Watching for file changes

now

test.ts:3:23 - error TS1117: An object literal cannot have multiple properties with the same name.

3 const first = { a: 1, a: 2 };
                        ~

test.ts:6:32 - error TS1117: An object literal cannot have multiple properties with the same name.

6         const second = { a: 1, a: 2 };

this is my first pr to this project.
Let me know if there is anything I am missing 😄

Fixes #46815

[Yuuki77]

master is failing as well 🤔

[sandersn]

Looks good, just need to fix indentation. (And I hope the build is no longer broken, you might have to merge from main to get that.)

[Yuuki77]

@sandersn thank you for the reviews!
I have updated it.
Could you take a look when you have time?