[ExpressionLanguage] Fixed conflict between punctation and range

The range operator (`..`) was actually lexed as 2 punctations (`.`). That causes any expression using the range to fail.

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -