8168774: Polymorhic signature method check crashes javac
Summary: Check for polysig method assumes arity is greater than zero
Reviewed-by: vromero
T8039026.java:10:23: compiler.err.var.might.not.have.been.initialized: y
T8039026.java:12:28: compiler.err.var.might.not.have.been.initialized: x
T8039026.java:18:13: compiler.err.var.might.already.be.assigned: y
3 errors