Allow method calls of import (fixes #135)

[gijsk]

As noted in #135 (comment) , in modern parsers this should be OK as the "real" dynamic import cannot be renamed or called as a method.

[mozfreddyb]

liberal parser support can bite us here.
I've found various way this is parsed, by going through eslint, babel-eslint, @babel/parser on https://astexplorer.net/:

• acorn, babel-eslint ImportExpression
• @babel/parser: CallExpression with "type": "Import"
• flow (which we dont care about): CallExpression with a callee that is not an Identifier node, but rather a node of type Import

We don't care about flow, but can we make sure that we catch the others with tests per-parser?

[mozfreddyb]

Bedankt! :)