Ensure Array.Resize creates an array of the same type as the incoming array

[xtqqczze]

Likely a breaking change.

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Issue Details

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Author:	xtqqczze
Assignees:	-
Labels:	area-System.Runtime
Milestone:	-

[xtqqczze]

Related: dotnet/docs#38474

[xtqqczze]

Reproduction of issue: https://sharplab.io/#v2:EYLgxg9gTgpgtADwGwBYA0AXEUCuA7AHwAEAmARgFgAoa6gSzwwG0BdAAgEMoo2BeNgBQNmLAJQCAgtw4BPUWzwwA7qzYBvNmRxsAvgG5qRMgE4BXKADoA4jAwAVGQAcYA0aINUpUWRYBKMAGc6AC8XWAAzTm40TXdDEzNua1sHZ1c4z2kZP0CQsJhI8xiSDKNTc2T7Jxc3Dy8ffyDQgQioqBiyUoSKmyq02qA==

[jkotas]

Related: dotnet/docs#38474

RuntimeHelpers.GetSubArray API was introduced recently to support recently introduced C# feature and the breaking change was taken to align with the design of C# feature.

You are proposing to change Array.Resize behavior that existed for 20 years. What is the justification for that?

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