Match scala symbols composed of valid punctuation

Scala symbols can either be composed of word characters or the following punctuation characters: `\/*&^%#@!~<>|=+-`
Fixed the regex to allow for the punctuation case.

Author: jpbufe3

Syntaxes/Scala.tmLanguage

@@ -792,7 +792,7 @@
 		<key>scala-symbol</key>
 		<dict>
 			<key>match</key>
-			<string>'\w+(?=[^'\w])</string>
+			<string>('\w+(?=[^'\w])|'[\/*&^%#@!~<>|=+-]+(?=[^'\/*&^%#@!~<>|=+-]))</string>
 			<key>name</key>
 			<string>entity.name.type.symbol.scala</string>
 		</dict>