Fix rb_hash_foreach to accept ST_CHECK from function.

Author: aardvark179

lib/truffle/truffle/cext.rb

@@ -965,13 +965,16 @@ def rb_hash_set_ifnone(hash, value)
   ST_CONTINUE = 0
   ST_STOP = 1
   ST_DELETE = 2
+  ST_CHECK = 3
+  ST_REPLACE = 4
 
   def rb_hash_foreach(hash, func, farg)
     hash.each do |key, value|
       st_result = Truffle::Interop.execute_without_conversion(func, Primitive.cext_wrap(key), Primitive.cext_wrap(value), farg)
 
       case st_result
       when ST_CONTINUE
+      when ST_CHECK
       when ST_STOP then break
       when ST_DELETE then hash.delete(key)
       else raise ArgumentError, "Unknown 'func' return value: #{st_result}"