Java to Kotlin converter: special conversion of some Collections methods

j2k/tests/testData/ast/methodCallExpression/collectionsMethods.java

@@ -0,0 +1,12 @@
+//file
+import java.util.*;
+
+class A {
+    Map<String, String> foo() {
+        List<String> list1 = Collections.emptyList();
+        List<Integer> list2 = Collections.singletonList(1);
+        Set<String> set1 = Collections.emptySet();
+        Set<String> set2 = Collections.singleton("a");
+        return Collections.emptyMap();
+    }
+}

j2k/tests/testData/ast/methodCallExpression/collectionsMethods.kt

@@ -0,0 +1,12 @@
+import java.util.*
+import kotlin.Map
+
+class A {
+    fun foo(): Map<String, String> {
+        val list1 = listOf()
+        val list2 = listOf(1)
+        val set1 = setOf()
+        val set2 = setOf("a")
+        return mapOf()
+    }
+}

j2k/tests/testData/ast/methodCallExpression/collectionsMethods.kt.todo

@@ -0,0 +1,12 @@
+import java.util.*
+import kotlin.Map
+
+class A {
+    fun foo(): Map<String, String> {
+        val list1 = listOf<String>()
+        val list2 = listOf(1)
+        val set1 = setOf<String>()
+        val set2 = setOf("a")
+        return mapOf()
+    }
+}