Bump scala-asm version

The motivation is to support reading Classfile v53, for Java 9.

Author: retronym

versions.properties

@@ -21,7 +21,7 @@ scala-swing.version.number=2.0.0
 scala-swing.version.osgi=2.0.0
 jline.version=2.14.3
 # this one is shaded and embedded in scala-compiler.jar
-scala-asm.version=5.1.0-scala-1
+scala-asm.version=5.1.0-scala-2
 
 # external modules, used internally (not shipped)
 partest.version.number=1.1.0