For loop on arrays working, untested, read more

Needed: break and continue support, extensive tests, other iterables

source/toy_opcodes.h

@@ -12,9 +12,9 @@ typedef enum Toy_OpcodeType {
 	TOY_OPCODE_ACCESS,
 	TOY_OPCODE_INVOKE, //for calling functions
 	TOY_OPCODE_ATTRIBUTE, //for accessing parts of compounds
-	TOY_OPCODE_ITERABLE, //for operating on all members of a compound
 	TOY_OPCODE_DUPLICATE, //duplicate the top of the stack
 	TOY_OPCODE_ELIMINATE, //remove the top of the stack
+	TOY_OPCODE_ITERATE, //for operating on all members of a compound
 
 	//arithmetic instructions
 	TOY_OPCODE_ADD,
@@ -67,5 +67,6 @@ typedef enum Toy_OpParamJumpConditional {
 	TOY_OP_PARAM_JUMP_ALWAYS = 0,
 	TOY_OP_PARAM_JUMP_IF_TRUE = 1,
 	TOY_OP_PARAM_JUMP_IF_FALSE = 2,
+	TOY_OP_PARAM_JUMP_IF_NULL = 3,
 } Toy_OpParamJumpConditional;