KT-4727 J2K: Convert Java code copied from browser or other sources

#KT-4727 Fixed

idea/testData/copyPaste/plainTextConversion/MembersToTopLevel.expected.kt

@@ -0,0 +1,9 @@
+package to
+
+fun foo() {
+    val list = ArrayList<String>()
+    list.add(1)
+}
+
+fun bar() {
+}