rename Free argument from size to count to be consistent with Alloc

ir/be/beabi.c

@@ -948,11 +948,11 @@ static ir_node *adjust_free(be_abi_irg_t *env, ir_node *free, ir_node *curr_sp)
 	if (type != firm_unknown_type && get_type_size_bytes(type) != 1) {
 		ir_tarval *tv   = new_tarval_from_long(get_type_size_bytes(type), mode_Iu);
 		ir_node   *cnst = new_rd_Const(dbg, irg, tv);
-		ir_node   *mul  = new_rd_Mul(dbg, block, get_Free_size(free),
+		ir_node   *mul  = new_rd_Mul(dbg, block, get_Free_count(free),
 		                             cnst, mode_Iu);
 		size = mul;
 	} else {
-		size = get_Free_size(free);
+		size = get_Free_count(free);
 	}
 
 	stack_alignment = 1 << arch_env->stack_alignment;

ir/ir/irverify.c

@@ -1550,7 +1550,7 @@ static int verify_node_Free(const ir_node *n)
 	ir_mode *mymode  = get_irn_mode(n);
 	ir_mode *op1mode = get_irn_mode(get_Free_mem(n));
 	ir_mode *op2mode = get_irn_mode(get_Free_ptr(n));
-	ir_mode *op3mode = get_irn_mode(get_Free_size(n));
+	ir_mode *op3mode = get_irn_mode(get_Free_count(n));
 
 	ASSERT_AND_RET_DBG(
 		/* Free: BB x M x ref x int_u --> M */

scripts/ir_spec.py

@@ -503,7 +503,7 @@ class Free(Op):
 	ins    = [
 		("mem",   "memory dependency" ),
 		("ptr",   "pointer to the object to free"),
-		("size",  "number of objects to allocate" ),
+		("count", "number of objects to allocate" ),
 	]
 	mode   = "mode_M"
 	flags  = [ "uses_memory" ]