Fix pattern enum decompilation and setSpeed when no speed is set.

libs/ev3/ns.ts

@@ -1,11 +1,11 @@
 
 //% color="#D42878"
-//% groups="['Brick buttons']"
+//% groups='["Brick buttons"]'
 namespace input {
 }
 
 //% color="#8AC044" weight=90 icon="\uf185"
-//% groups="['Lights', 'Screen', Motors']"
+//% groups='["Lights", "Screen", "Motors"]'
 namespace output {
 }