Fix git diff hunk 0 based start line

[lunny]

Fix #35040

The git diff hunk @@ -1,1 +0,4 @@ is a 0 based one which should not exist. The hunk is generated by the function CutDiffAroundLine which should be fixed in that function.

Before:

After:

[wxiaoguang]

1. Why not +1 to convert 0-based to 1-based?
2. How to reproduce and test?
3. Why not merge into Fix incorrect comment diff hunk parsing, fix github asset ID nil panic #35046 and fix together?

[wxiaoguang]

And, isn't the bug here?

[lunny]

1. Why not +1 to convert 0-based to 1-based?

It's 1-based but there is a 0 there.

2. How to reproduce and test?

Ref #35040 , I updated the content.

3. Why not merge into Fix a bug that the code diff hunk missing one @ #35046 and fix together?

I’m not certain this is the best fix, but the other one is clearly correct.

[wxiaoguang]

1. Why not +1 to convert 0-based to 1-based?

It's 1-based but there is a 0 there.

Can you look into why 0 is there?

And, isn't the bug here?

#35047 (comment)

[wxiaoguang]

3. How to reproduce and test?

Ref #35040 , I updated the content.

How to use the "content" to reproduce and write a test?

[wxiaoguang]

The root problem is there is a bug in getDiffLineSectionInfo

[wxiaoguang]

-> Fix incorrect git diff hunk parsing, fix github asset ID nil panic #35046