Migrate boxAgainstJava tests to multi-file framework

compiler/testData/codegen/boxAgainstJava/innerClass/kt3532.java

@@ -1,3 +0,0 @@
-public class kt3532 {
-    public class Inner { }
-}

compiler/testData/codegen/boxAgainstJava/innerClass/kt3532.kt

@@ -1,4 +1,12 @@
+// FILE: Foo.java
+
+public class Foo {
+    public class Inner { }
+}
+
+// FILE: 1.kt
+
 fun box(): String {
-    kt3532().Inner()
+    Foo().Inner()
     return "OK"
-}
+}

compiler/testData/codegen/boxAgainstJava/innerClass/kt3812.java

@@ -1,8 +0,0 @@
-public class kt3812 {
-    public class Inner {
-
-    }
-
-    public class Inner$ {
-    }
-}

compiler/testData/codegen/boxAgainstJava/innerClass/kt3812.kt

@@ -1,5 +1,18 @@
+// FILE: Foo.java
+
+public class Foo {
+    public class Inner {
+
+    }
+
+    public class Inner$ {
+    }
+}
+
+// FILE: 1.kt
+
 fun box(): String {
-    kt3812().Inner()
-    kt3812().`Inner$`()
+    Foo().Inner()
+    Foo().`Inner$`()
     return "OK"
-}
+}

compiler/testData/codegen/boxAgainstJava/innerClass/kt4036.java

@@ -1,8 +0,0 @@
-public class kt4036 {
-    public class Inner1$class {
-
-    }
-
-    public class Inner2$class {
-    }
-}

compiler/testData/codegen/boxAgainstJava/innerClass/kt4036.kt

@@ -1,5 +1,17 @@
+// FILE: Foo.java
+
+public class Foo {
+    public class Inner1$class {
+    }
+
+    public class Inner2$class {
+    }
+}
+
+// FILE: 1.kt
+
 fun box(): String {
-    kt4036().`Inner1$class`()
-    kt4036().`Inner2$class`()
+    Foo().`Inner1$class`()
+    Foo().`Inner2$class`()
     return "OK"
-}
+}