Glen Whitney 9ad4df712b
fix(demo): Restore autocomplete to operation (#2435)
Adjust to the new location of Unit, as math.Unit not math.type.Unit.
  Use the new api for the parser's scope (getAll() to get all
  the identifiers) so that autocompletion of user-defined symbols will
  again work.
  When there are multiple matches, cycle through them with
  repeated TABs.
  Mention autocomplete in the tips and shrink them slightly as
  there are now several of them.
2022-02-25 19:39:54 -08:00
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