Invalid output of dynamic import with template string argument in ES5.

[odensc]

TypeScript Version: 2.4.1 / nightly (2.5.0-dev.20170629)

Code

import(`./${"module"}`)

Expected behavior:
Output of:

import("./" + "module");

Actual behavior:
Output of:

(import)("./" + "module");

Using "target": "es5" and "module": "esnext", TypeScript outputs invalid syntax for the dynamic import expression, wrapping it in parentheses.

Using a target of es2015 or higher, TypeScript outputs valid syntax with no parentheses.

This is only happens if import is given a template string.

[ikatyang]

It seems duplicate of #16763

[odensc]

@ikatyang Thanks. I searched the issues for "es5", but that issue doesn't say it anywhere - so it must have not came up. I'll close this issue and mention in the other one that it only happens in es5.