unicodeIdentifierName2.ts(1,6): error TS1127: Invalid character.
unicodeIdentifierName2.ts(1,8): error TS1134: Variable declaration expected.
unicodeIdentifierName2.ts(1,10): error TS1134: Variable declaration expected.
unicodeIdentifierName2.ts(1,26): error TS1127: Invalid character.


==== unicodeIdentifierName2.ts (4 errors) ====
    var a₁ = "hello"; alert(a₁)
         ~
!!! error TS1127: Invalid character.
           ~
!!! error TS1134: Variable declaration expected.
             ~~~~~~~
!!! error TS1134: Variable declaration expected.
                             ~
!!! error TS1127: Invalid character.