Segfault in nimlangserver when `-d:nimOptIter` is defined

[jmgomez]

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Description

Download and build latest https://github.com/nim-lang/langserver Remove the lock file and the requires from the nimlangserver.nimble so it uses the latest Nim to build. Run nimble build Open a nim project with the vscode extension (make sure the built nimlangserver is the one used)

It will crash with the following (you can see the output in the Nim Language Server tab or Nim Lsp if you are running a newer version)

Works fine with 2.0.8 and with 2.0.9

Traceback (most recent call last)
/Volumes/Store/Nim/lib/system/deepcopy.nim(190) genericDeepCopy
/Volumes/Store/Nim/lib/system/deepcopy.nim(132) genericDeepCopyAux
/Volumes/Store/Nim/lib/system/deepcopy.nim(72) genericDeepCopyAux
/Volumes/Store/Nim/lib/system/deepcopy.nim(68) genericDeepCopyAux
/Volumes/Store/Nim/lib/system/deepcopy.nim(153) genericDeepCopyAux
SIGSEGV: Illegal storage access. (Attempt to read from nil?)

Nim Version

Nim Compiler Version 2.1.99 [MacOSX: arm64]
Compiled at 2024-09-10
Copyright (c) 2006-2024 by Andreas Rumpf

git hash: baec1955b5453ec71fc12355142dd9a813fa02fb

Current Output

No response

Expected Output

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Known Workarounds

No response

Additional Information

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