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Are Node.js nightly and v8-canary supported?

See original GitHub issue

Windows 7 x64. Node.js 10.0.0-v8-canary-2018-04-03-635853bf03 (V8 6.7.213-node.0) jsvu v1.1.1 Second (updating) run:

> jsvu
� jsvu v1.1.1 — the JavaScript engine Version Updater �
✔ Read OS from config: win64
✔ Read engines from config: v8
Administrator: C:\Windows\system32\cmd.exe - jsvu[6168]: src\node_contextify.cc:759: Assertion `args[1]->IsString()' failed.
 1: node::DecodeWrite
 2: node::DecodeWrite
 3: uv_loop_fork
 4: v8::internal::compiler::OperationTyper::ConvertTaggedHoleToUndefined
 5: v8::internal::compiler::CodeAssembler::TailCallBytecodeDispatch<v8::internal::compiler::Node * __ptr64,v8::internal::compiler::Node * __ptr64,v8::internal::compiler::Node * __ptr64,v8::internal::compiler::Node * __ptr64>
 6: v8::internal::compiler::CodeAssembler::TailCallBytecodeDispatch<v8::internal::compiler::Node * __ptr64,v8::internal::compiler::Node * __ptr64,v8::internal::compiler::Node * __ptr64,v8::internal::compiler::Node * __ptr64>
 7: v8::internal::compiler::CodeAssembler::TailCallBytecodeDispatch<v8::internal::compiler::Node * __ptr64,v8::internal::compiler::Node * __ptr64,v8::internal::compiler::Node * __ptr64,v8::internal::compiler::Node * __ptr64>
 8: 000000FA22B841AF