jumps, try and definitions are statements too

lib/ast.js

@@ -248,7 +248,7 @@ var AST_Defun = DEFNODE("Defun", null, {
 
 var AST_Jump = DEFNODE("Jump", null, {
     $documentation: "Base class for “jumps” (for now that's `return`, `throw`, `break` and `continue`)"
-});
+}, AST_Statement);
 
 var AST_Exit = DEFNODE("Exit", "value", {
     $documentation: "Base class for “exits” (`return` and `throw`)",
@@ -353,7 +353,7 @@ var AST_Try = DEFNODE("Try", "btry bcatch bfinally", {
             if (this.bfinally) this.bfinally._walk(visitor);
         });
     }
-});
+}, AST_Statement);
 
 // XXX: this is wrong according to ECMA-262 (12.4).  the catch block
 // should introduce another scope, as the argname should be visible
@@ -391,7 +391,7 @@ var AST_Definitions = DEFNODE("Definitions", "definitions", {
             });
         });
     }
-});
+}, AST_Statement);
 
 var AST_Var = DEFNODE("Var", null, {
     $documentation: "A `var` statement"