Java to Kotlin converter: special conversion of some Collections methods

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()
+    }
+}