tests: fix fmt tests

vlib/v/checker/checker.v

@@ -348,9 +348,9 @@ pub fn (c mut Checker) call_fn(call_expr mut ast.CallExpr) table.Type {
 		// TODO: impl typeof properly (probably not going to be a fn call)
 		return table.string_type
 	}
-	//if c.fileis('json_test.v') {
+	// if c.fileis('json_test.v') {
-		//println(fn_name)
+	// println(fn_name)
-	//}
+	// }
 	if fn_name == 'json.encode' {
 	}
 	// look for function in format `mod.fn` or `fn` (main/builtin)

vlib/v/fmt/tests/import_multiple_expected.vv

@@ -2,3 +2,6 @@ import (
 	math
 	os
 )
+
+fn main() {
+}

vlib/v/fmt/tests/import_multiple_input.vv

@@ -1,2 +1,5 @@
 import math
 import os
+
+fn main() {
+}

vlib/v/fmt/tests/import_multiple_with_alias_expected.vv

@@ -3,3 +3,6 @@ import (
 	os
 	math.complex as c
 )
+
+fn main() {
+}

vlib/v/fmt/tests/import_multiple_with_alias_input.vv

@@ -1,3 +1,6 @@
 import math as m
 import os
 import math.complex as c
+
+fn main() {
+}

vlib/v/fmt/tests/import_single_expected.vv

@@ -1 +1,4 @@
 import os
+
+fn main() {
+}

vlib/v/fmt/tests/import_single_input.vv

@@ -1 +1,4 @@
 import os
+
+fn main() {
+}