+/* Possible cases of expression list used by build_x_compound_expr_from_list. */
+typedef enum expr_list_kind {
+ ELK_INIT, /* initializer */
+ ELK_MEM_INIT, /* member initializer */
+ ELK_FUNC_CAST /* functional cast */
+} expr_list_kind;
+
+/* Possible cases of implicit bad rhs conversions. */
+typedef enum impl_conv_rhs {
+ ICR_DEFAULT_ARGUMENT, /* default argument */
+ ICR_CONVERTING, /* converting */
+ ICR_INIT, /* initialization */
+ ICR_ARGPASS, /* argument passing */
+ ICR_RETURN, /* return */
+ ICR_ASSIGN /* assignment */
+} impl_conv_rhs;
+
+/* Possible cases of implicit or explicit bad conversions to void. */
+typedef enum impl_conv_void {
+ ICV_CAST, /* (explicit) conversion to void */
+ ICV_SECOND_OF_COND, /* second operand of conditional expression */
+ ICV_THIRD_OF_COND, /* third operand of conditional expression */
+ ICV_RIGHT_OF_COMMA, /* right operand of comma operator */
+ ICV_LEFT_OF_COMMA, /* left operand of comma operator */
+ ICV_STATEMENT, /* statement */
+ ICV_THIRD_IN_FOR /* for increment expression */
+} impl_conv_void;
+