arrays, maps: cleanup comments and parameter names in function signatures (#15960)

vlib/arrays/arrays_test.v

@@ -2,17 +2,17 @@ module arrays
 
 fn test_min() {
 	a := [8, 2, 6, 4]
-	mut ri := min(a)?
+	mut ri := min(a)!
 	assert ri == 2
-	ri = min(a[2..])?
+	ri = min(a[2..])!
 	assert ri == 4
 	b := [f32(5.1), 3.1, 1.1, 9.1]
-	mut rf := min(b)?
+	mut rf := min(b)!
 	assert rf == f32(1.1)
-	rf = min(b[..2])?
+	rf = min(b[..2])!
 	assert rf == f32(3.1)
 	c := [u8(4), 9, 3, 1]
-	mut rb := min(c)?
+	mut rb := min(c)!
 	assert rb == u8(1)
 	rb = min(c[..3])?
 	assert rb == u8(3)
@@ -20,43 +20,43 @@ fn test_min() {
 
 fn test_max() {
 	a := [8, 2, 6, 4]
-	mut ri := max(a)?
+	mut ri := max(a)!
 	assert ri == 8
-	ri = max(a[1..])?
+	ri = max(a[1..])!
 	assert ri == 6
 	b := [f32(5.1), 3.1, 1.1, 9.1]
-	mut rf := max(b)?
+	mut rf := max(b)!
 	assert rf == f32(9.1)
-	rf = max(b[..3])?
+	rf = max(b[..3])!
 	assert rf == f32(5.1)
 	c := [u8(4), 9, 3, 1]
-	mut rb := max(c)?
+	mut rb := max(c)!
 	assert rb == u8(9)
-	rb = max(c[2..])?
+	rb = max(c[2..])!
 	assert rb == u8(3)
 }
 
 fn test_idx_min() {
 	a := [8, 2, 6, 4]
-	ri := idx_min(a)?
+	ri := idx_min(a)!
 	assert ri == 1
 	b := [f32(5.1), 3.1, 1.1, 9.1]
-	rf := idx_min(b)?
+	rf := idx_min(b)!
 	assert rf == 2
 	c := [u8(4), 9, 3, 1]
-	rb := idx_min(c)?
+	rb := idx_min(c)!
 	assert rb == 3
 }
 
 fn test_idx_max() {
 	a := [8, 2, 6, 4]
-	ri := idx_max(a)?
+	ri := idx_max(a)!
 	assert ri == 0
 	b := [f32(5.1), 3.1, 1.1, 9.1]
-	rf := idx_max(b)?
+	rf := idx_max(b)!
 	assert rf == 3
 	c := [u8(4), 9, 3, 1]
-	rb := idx_max(c)?
+	rb := idx_max(c)!
 	assert rb == 1
 }