Add test for Issue 343

test/test_syntax_checking.rb

@@ -7,6 +7,7 @@ describe Pry do
     ["p = <<FOO", "lots", "and", "lots of", "foo", "FOO"],
     ["[", ":lets,", "'list',", "[/nested/", "], things ]"],
     ["abc =~ /hello", "/"],
+    ["issue = %W/", "343/"],
     ["pouts(<<HI, 'foo", "bar", "HI", "baz')"],
   ].each do |foo|
     it "should not raise an error on broken lines: #{foo.join("\\n")}" do