The shell syntax highlight is wrong after output redirection and a string #153

Prerequisites

• Put an X between the brackets on this line if you have done all of the following:
  • Reproduced the problem in Safe Mode: https://flight-manual.atom.io/hacking-atom/sections/debugging/#using-safe-mode
  • Followed all applicable steps in the debugging guide: https://flight-manual.atom.io/hacking-atom/sections/debugging/
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  • Checked that your issue isn't already filed: https://github.com/issues?utf8=✓&q=is%3Aissue+user%3Aatom
  • Checked that there is not already an Atom package that provides the described functionality: https://atom.io/packages

Description

The shell syntax highlighting does not behave as expected after the first double quote of a string that follows an output redirection (line 200 on the screenshot below).
All the rest of the file is somewhat coloured as a string (green).
Please find the following screenshot from Atom:

For comparison, here's also a screenshot from gedit of the same file, to show how the syntax highlighting look:

(Copyright note: the code snippet shown in the screenshots above is from the script "multicrop" for ImageMagick by Fred Weinhaus, found at http://www.fmwconcepts.com/imagemagick/index.php)

After some trials, it seems that removing >&2 fixes the highlighting. So, the syntax is coloured correctly if that is deleted. In the steps below you find a snipped i used for trials.

Steps to Reproduce

1. Take this snippet of code:

functs()
    {
    echo >&2 ""
    echo >&2 "$USER:" "$PATH"
    echo >&2 'this' "that"
    }

2. Paste it in Atom, select "Shell Script" as sysntax highlighitng
3. You'll see that after the first double quote of the first string after >&2 everything is green, a part from variables
4. To verify what should be the behaviour, paste the same snippet in gedit and highlighting for "sh" does hold the desired result
5. When the string >&2 is removed, sometimes the systax is highlighted correctly again.

Expected behavior:

See description

Actual behavior:

See description

Reproduces how often:

All the time, consistently

Versions

$ atom --version
Atom    : 1.40.1
Electron: 3.1.10
Chrome  : 66.0.3359.181
Node    : 10.2.0

$ apm --version
apm  2.4.3
npm  6.2.0
node 10.2.1 x64
atom 1.40.1
python 2.7.15+
git 2.17.1

Additional Information

Ubuntu OS, 18.04

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.3 LTS
Release:	18.04
Codename:	bionic