8066225: NPE in MethodEmitter with duplicate integer switch cases
Reviewed-by: hannesw, lagergren
[object Object]Error at func (test/script/basic/JDK-8020437.js:48) at f (test/script/basic/JDK-8020437.js:41) at <program> (test/script/basic/JDK-8020437.js:37)