Don't hoist non-renamed exports

[jches]

Non-renamed exports initialized with a literal were being hoisted, leading to a $$props reference outside the component instance.

let name = 'world';
	
export { name };

$$props is not defined

Fixes #2347

[codecov-io]

Codecov Report

Merging #2351 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2351   +/-   ##
=======================================
  Coverage   91.83%   91.83%           
=======================================
  Files           1        1           
  Lines          49       49           
=======================================
  Hits           45       45           
  Misses          4        4

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update e3c0887...cfc1a40. Read the comment docs.

[Rich-Harris]

nice