Wasm | varint - incorrect counts for expected bytes

[ghost]

nova/wasm/src/varint.rs

Lines 56 to 61 in f903792

	if length >= 64 {
	return Err(Error::TooManyBytes {
	expected: 5,
	found: length / 8,
	});
	}

U64 may definitely read over 5 bytes.

Furthermore, the expected/found situation (between both u32 and u64) is possibly incorrect (and somewhat weird), as for u32 one may have 5 bytes, with 0xFF for the first four, and 0x7F for the last - this is 4 continuation bits, and 5*7 = 35 bits in the integer value. 35 bits (2³⁵ - 1) will overflow the u32.

[MierenManz]

It doesn't make sense to read over the count. Only that we do. Will change the error

[ghost]

We should pull my code from the Discord for this. But anyways. isn't the WebAssembly engine abandoned now :)

[ghost]

I didn't write up my corresponding implementation for u64. I only have u32. I'll write up the u64 impl soon then use both here. I want to get this done within a few hours.