Decode is not the inverse of encode

[ncordon]

This should hold for the binary format, but a minimal example shows that the bytes are not preserved:

from bblfsh import *
file = "fixtures/test.py"
client = BblfshClient("localhost:9432")
ctx = client.parse(file)
root = ctx.root.get()
pyCtx = context(root)

originalBytes = ctx._response.uast
encodedBytes = pyCtx.encode(fmt = 0)
# This is false
originalBytes == encodedBytes

# This is true
decode(encodedBytes).load() == root

For more context, check out scala-client#127. Problem may lie here, where we are not returning NODE_UINT in any case. In the scala-client we do return NODE_UINT for some cases.