Has trouble picking between the 3 current "+" overloads.
In all cases, 0+0 === 0.
test("0+0+3", TypeInt.con(3));
==>
java.lang.ClassCastException: com.cliffc.aa.type.Type cannot be cast to com.cliffc.aa.type.TypeObj
at com.cliffc.aa.node.MrgProjNode.value(MrgProjNode.java:81)
at com.cliffc.aa.node.Node.combo_forwards(Node.java:550)
at com.cliffc.aa.Combo.opto(Combo.java:120)
Has trouble picking between the 3 current "+" overloads. In all cases, 0+0 === 0.