Location detection based on esprima tokens

Provide more accurate location detection based on esprima tokens. such as...

 * `operator` of BinaryExpression, LogicalExpression, AssignmentExpression
 * `property` of MemberExpression having `computed: true`

TODO
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 * [x] Design
 * [x] `operator` of BinaryExpression, LogicalExpression, AssignmentExpression
 * [x] `property` of MemberExpression having `computed: true`
 * [x] Refactor