Merge remote-tracking branch 'upstream/pr/179'

* upstream/pr/179:
  Don't parse first word of array assignment as command

highlighters/main/test-data/assign.zsh

@@ -28,8 +28,9 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
-BUFFER='A=1'
+BUFFER='A=1 b=("foo" bar)'
 
 expected_region_highlight=(
   "1 3 $ZSH_HIGHLIGHT_STYLES[assign]" # A=1
+  "8 12 $ZSH_HIGHLIGHT_STYLES[double-quoted-argument]" # "foo"
 )