Merge pull request #394 from viralpraxis/fix-regexp-with-global-variable-unparsing

Fix regexp with gvar unparsing

Author: mbj

lib/unparser/node_helpers.rb

@@ -43,6 +43,7 @@ def n?(type, node)
       dstr
       empty_else
       ensure
+      gvar
       hash
       hash_pattern
       if

lib/unparser/writer/regexp.rb

@@ -55,6 +55,9 @@ def emit_body(node)
             write('#{')
             node.children.each(&method(:visit))
             write('}')
+          elsif n_gvar?(node)
+            write('#')
+            write_regular(node.children.first.to_s)
           else
             write_regular(node.children.first)
           end

test/corpus/literal/regexp.rb

@@ -30,3 +30,5 @@
 /
 a
 /
+/aaa #{$bbb}/
+/aaa #$bbb/