checker: merge array_filter_fn_err tests (#8506)

vlib/v/checker/tests/array_filter_anon_fn_err_a.out

@@ -1,6 +0,0 @@
-vlib/v/checker/tests/array_filter_anon_fn_err_a.vv:2:24: error: function needs exactly 1 argument
-    1 | fn main() {
-    2 |     a := [1,2,3,4].filter(fn(a int, b int) bool { return a > 0 })
-      |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-    3 |     println(a)
-    4 | }

vlib/v/checker/tests/array_filter_anon_fn_err_a.vv

@@ -1,4 +0,0 @@
-fn main() {
-	a := [1,2,3,4].filter(fn(a int, b int) bool { return a > 0 })
-	println(a)
-}

vlib/v/checker/tests/array_filter_anon_fn_err_b.out

@@ -1,6 +0,0 @@
-vlib/v/checker/tests/array_filter_anon_fn_err_b.vv:2:24: error: type mismatch, should use `fn(a int) bool {...}`
-    1 | fn main() {
-    2 |     a := [1,2,3,4].filter(fn(a string) bool { return a.len > 0 })
-      |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-    3 |     println(a)
-    4 | }

vlib/v/checker/tests/array_filter_anon_fn_err_b.vv

@@ -1,4 +0,0 @@
-fn main() {
-	a := [1,2,3,4].filter(fn(a string) bool { return a.len > 0 })
-	println(a)
-}

vlib/v/checker/tests/array_filter_fn_err.out

@@ -0,0 +1,27 @@
+vlib/v/checker/tests/array_filter_fn_err.vv:2:25: error: function needs exactly 1 argument
+    1 | fn main() {
+    2 |     a1 := [1,2,3,4].filter(fn(a int, b int) bool { return a > 0 })
+      |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    3 |     println(a1)
+    4 |
+vlib/v/checker/tests/array_filter_fn_err.vv:5:25: error: type mismatch, should use `fn(a int) bool {...}`
+    3 |     println(a1)
+    4 |
+    5 |     a2 := [1,2,3,4].filter(fn(a string) bool { return a.len > 0 })
+      |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    6 |     println(a2)
+    7 |
+vlib/v/checker/tests/array_filter_fn_err.vv:8:18: error: function needs exactly 1 argument
+    6 |     println(a2)
+    7 |
+    8 |     a3 := [1,2,3,4].filter(fil1)
+      |                     ~~~~~~~~~~~~
+    9 |     println(a3)
+   10 |
+vlib/v/checker/tests/array_filter_fn_err.vv:11:25: error: type mismatch, should use `fn(a int) bool {...}`
+    9 |     println(a3)
+   10 |
+   11 |     a4 := [1,2,3,4].filter(fil2)
+      |                            ~~~~
+   12 |     println(a4)
+   13 | }

vlib/v/checker/tests/array_filter_fn_err.vv

@@ -0,0 +1,21 @@
+fn main() {
+	a1 := [1,2,3,4].filter(fn(a int, b int) bool { return a > 0 })
+	println(a1)
+
+	a2 := [1,2,3,4].filter(fn(a string) bool { return a.len > 0 })
+	println(a2)
+
+	a3 := [1,2,3,4].filter(fil1)
+	println(a3)
+
+	a4 := [1,2,3,4].filter(fil2)
+	println(a4)
+}
+
+fn fil1(a int, b int) bool {
+	return a > 0
+}
+
+fn fil2(a string) bool {
+	return a.len > 0
+}

vlib/v/checker/tests/array_filter_fn_err_a.out

@@ -1,7 +0,0 @@
-vlib/v/checker/tests/array_filter_fn_err_a.vv:5:17: error: function needs exactly 1 argument
-    3 | }
-    4 | fn main() {
-    5 |     a := [1,2,3,4].filter(fil)
-      |                    ~~~~~~~~~~~
-    6 |     println(a)
-    7 | }

vlib/v/checker/tests/array_filter_fn_err_a.vv

@@ -1,7 +0,0 @@
-fn fil(a int, b int) bool {
-	return a > 0
-}
-fn main() {
-	a := [1,2,3,4].filter(fil)
-	println(a)
-}

vlib/v/checker/tests/array_filter_fn_err_b.out

@@ -1,7 +0,0 @@
-vlib/v/checker/tests/array_filter_fn_err_b.vv:5:24: error: type mismatch, should use `fn(a int) bool {...}`
-    3 | }
-    4 | fn main() {
-    5 |     a := [1,2,3,4].filter(fil)
-      |                           ~~~
-    6 |     println(a)
-    7 | }

vlib/v/checker/tests/array_filter_fn_err_b.vv

@@ -1,7 +0,0 @@
-fn fil(a string) bool {
-	return a.len > 0
-}
-fn main() {
-	a := [1,2,3,4].filter(fil)
-	println(a)
-}