Ensure comments on assignment after the = before the value keep their place.

Author: kddnewton

CHANGELOG.md

@@ -15,6 +15,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) a
 - Allow `Hash` opening braces to have trailing comments.
 - Add parentheses if `Yield` breaks onto multiple lines.
 - Ensure all nodes that could have heredocs nested know about their end lines.
+- Ensure comments on assignment after the `=` before the value keep their place.
 
 ### Changed
 

lib/syntax_tree.rb

@@ -1696,7 +1696,7 @@ def format(q)
         q.format(target)
         q.text(" =")
 
-        if skip_indent_target? || skip_indent_value?
+        if target.comments.empty? && (skip_indent_target? || skip_indent_value?)
           q.text(" ")
           q.format(value)
         else