New J2K: Fix existing test data

j2k/testData/fileOrElement/methodCallExpression/collectionsMethods.new.kt

@@ -0,0 +1,9 @@
+internal class A {
+    fun foo(): Map<String?, String?> {
+        val list1: List<String?> = emptyList()
+        val list2: List<Int?> = listOf(1)
+        val set1: Set<String?> = emptySet()
+        val set2: Set<String?> = setOf("a")
+        return emptyMap()
+    }
+}

j2k/testData/fileOrElement/methodCallExpression/collectionsMethods2.new.kt

@@ -0,0 +1,6 @@
+internal class A {
+    fun foo() {
+        val list: List<String?> = listOf(null)
+        val set: Set<String?> = setOf(null)
+    }
+}