make ReadonlyUint8Array fully immutable #1112
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The current version of ReadonlyUint8Array is incomplete because
.subarrayreturns a normalUint8Arrayand likewise the various methods that take a callback provide the array itself as aUint8Arrayas a third parameter.Additionally, new mutable methods were recently added that are not omitted by the current definiton.
I pioneered this implementation in my own SDK which also gives an explanation of wtf I am doing here.
And while I have your attention, you may be interested in my fork-svm package which is built on top of kit as a proper way to test Solana programs.