New J2K: add multi-file conversion tests from old j2k

nj2k/testData/multiFile/FunctionalInterfaceAcceptor/Stage.java

@@ -0,0 +1,18 @@
+package test;
+
+public class Stage {
+    public void context(Acceptor acceptor) {
+        acceptor.acceptFace(new Face() {
+            @Override
+            public void subject(String p) {
+                System.out.println(p);
+            }
+        });
+        acceptor.setFace(new Face() {
+            @Override
+            public void subject(String p) {
+                System.out.println(p);
+            }
+        });
+    }
+}

nj2k/testData/multiFile/FunctionalInterfaceAcceptor/Stage.kt

@@ -0,0 +1,8 @@
+package test
+
+class Stage {
+    fun context(acceptor: Acceptor) {
+        acceptor.acceptFace { p -> println(p) }
+        acceptor.face = Face { p -> println(p) }
+    }
+}

nj2k/testData/multiFile/FunctionalInterfaceAcceptor/external/Acceptor.java

@@ -0,0 +1,16 @@
+package test;
+
+public class Acceptor {
+    private Face face;
+
+    public Face getFace() {
+        return face;
+    }
+
+    public void setFace(Face face) {
+        this.face = face;
+    }
+
+    public void acceptFace(Face face) {
+    }
+}

nj2k/testData/multiFile/FunctionalInterfaceAcceptor/external/Acceptor.java.expected

@@ -0,0 +1,16 @@
+package test;
+
+public class Acceptor {
+    private Face face;
+
+    public Face getFace() {
+        return face;
+    }
+
+    public void setFace(Face face) {
+        this.face = face;
+    }
+
+    public void acceptFace(Face face) {
+    }
+}

nj2k/testData/multiFile/FunctionalInterfaceAcceptor/external/Face.java

@@ -0,0 +1,5 @@
+package test;
+
+public interface Face {
+    void subject(String p);
+}

nj2k/testData/multiFile/FunctionalInterfaceAcceptor/external/Face.java.expected

@@ -0,0 +1,5 @@
+package test;
+
+public interface Face {
+    void subject(String p);
+}