Old-style octal literal types are treated as decimal literal types

// @target: es3
const i: 010 = 8;

Actual:

const i: 010 = 8;
      ~
      Error: Type '8' is not assignable to type '10';

Expected:

const i: 010 = 8;
         ~~~
         Error: Octal literal types must use ES2015 syntax. Use the syntax '0o10'.

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