SC2086: variable from the braces expand loop for i in {0..10}

[A4-Tacks]

For bugs

• Rule Id: SC2086
• My shellcheck version:

  ShellCheck - shell script analysis tool
  version: 0.9.0
  license: GNU General Public License, version 3
  website: https://www.shellcheck.net
  

• The rule's wiki page does not already cover this (e.g. https://shellcheck.net/wiki/SC2086)
• I tried on https://www.shellcheck.net/ and verified that this is still a problem on the latest commit

For new checks and feature suggestions

• https://www.shellcheck.net/ (i.e. the latest commit) currently gives no useful warnings about this
• I searched through https://github.com/koalaman/shellcheck/issues and didn't find anything related

Here's a snippet or screenshot that shows the problem:

#!/usr/bin/bash
for i in {0..10}; do
    echo $i
done
for i in {a..z}; do
    echo $i
done
for i in {0..20..4}; do
    echo $i
done

Here's what shellcheck currently says:

In - line 3:
    echo $i
         ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 
    echo "$i"


In - line 6:
    echo $i
         ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 
    echo "$i"


In - line 9:
    echo $i
         ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 
    echo "$i"

For more information:
  https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...

Here's what I wanted or expected to see:

no warnings