Unicode characters in let bindings can break intellisence & errors about ionide-fsgrammar HOT 2 CLOSED

F# Lang specification for reference.

regexp digit-char = [0-9]
regexp letter-char = '\Lu' | '\Ll' | '\Lt' | '\Lm' | '\Lo' | '\Nl'
regexp connecting-char = '\Pc'
regexp combining-char = '\Mn' | '\Mc'
regexp formatting-char = '\Cf'

regexp ident-start-char =
| letter-char
| _

regexp ident-char =
| letter-char
| digit-char
| connecting-char
| combining-char
| formatting-char
| '
| _

regexp ident-text = ident-start-char ident-char*
token ident =
| ident-text For example, myName1
| ( [^'' '\n' '\r' '\t'] | '' [^ '' '\n' '\r' '\t'] )+ For example,value.with odd#name`

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The extended Unicode characters like 💩 will break error messages and type checking if in comments as well.

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