Fixed test results after last changes

mysql-test/r/func_if.result:
  Fixed results after last changes
mysql-test/r/func_test.result:
  Fixed results after last changes
mysql-test/r/type_float.result:
  Fixed results after last changes

mysql-test/r/func_if.result

@@ -32,4 +32,4 @@ a
 aa
 aaa
 sum(if(num is null,0.00,num))
-nan
+144.54

mysql-test/r/func_test.result

@@ -18,8 +18,6 @@
 1
 !0	NOT 0=1	!(0=0)	1 AND 1	1 && 0	0 OR 1	1 || NULL	1=1 or 1=1 and 1=0
 1	1	0	1	0	1	1	1
-IF(0,"ERROR","this")	IF(1,"is","ERROR")	IF(NULL,"ERROR","a")	IF(1,2,3)|0	IF(1,2.0,3.0)+0
-this	is	a	2	2.0
 2 between 1 and 3	"monty" between "max" and "my"	2=2 and "monty" between "max" and "my" and 3=3
 1	1	1
 'b' between 'a' and 'c'	'B' between 'a' and 'c'
@@ -34,5 +32,3 @@ this	is	a	2	2.0
 1	1
 1 and 0 or 2	2 or 1 and 0
 1	1
-sum(if(num is null,0.00,num))
-144.54

mysql-test/r/type_float.result

@@ -57,7 +57,7 @@ de2	decimal(6,0)	YES		NULL		select,insert,update,references
 de3	decimal(5,2)	YES		NULL		select,insert,update,references
 n	decimal(10,0)	YES		NULL		select,insert,update,references
 n2	decimal(8,0)	YES		NULL		select,insert,update,references
-n3	decimal(8,6)	YES		NULL		select,insert,update,references
+n3	decimal(7,6)	YES		NULL		select,insert,update,references
 a
 -0.010
 -0.002