Migrate boxAgainstJava tests to multi-file framework

compiler/testData/codegen/boxAgainstJava/constructor/genericConstructor.java

@@ -1,5 +0,0 @@
-package test;
-
-public class genericConstructor<T extends Number> {
-    public genericConstructor(T number) {}
-}

compiler/testData/codegen/boxAgainstJava/constructor/genericConstructor.kt

@@ -1,6 +1,16 @@
-import test.genericConstructor
+// FILE: test/Foo.java
 
-class Subclass : genericConstructor<Int>(42) {
+package test;
+
+public class Foo<T extends Number> {
+    public Foo(T number) {}
+}
+
+// FILE: 1.kt
+
+import test.Foo
+
+class Subclass : Foo<Int>(42) {
 }
 
 fun box(): String {

compiler/testData/codegen/boxAgainstJava/constructor/secondaryConstructor.java

@@ -1,24 +0,0 @@
-package test;
-
-public class secondaryConstructor {
-    private final String x;
-    private final String y;
-
-    public secondaryConstructor(String x, String y) {
-        this.x = x;
-        this.y = y;
-    }
-
-    public secondaryConstructor(String x) {
-        this(x, "def_y");
-    }
-
-    public secondaryConstructor() {
-        this("def_x");
-    }
-
-    @Override
-    public String toString() {
-        return x + "#" + y;
-    }
-}

compiler/testData/codegen/boxAgainstJava/constructor/secondaryConstructor.kt

@@ -1,6 +1,35 @@
-import test.secondaryConstructor;
+// FILE: test/Foo.java
 
-class Child : secondaryConstructor {
+package test;
+
+public class Foo {
+    private final String x;
+    private final String y;
+
+    public Foo(String x, String y) {
+        this.x = x;
+        this.y = y;
+    }
+
+    public Foo(String x) {
+        this(x, "def_y");
+    }
+
+    public Foo() {
+        this("def_x");
+    }
+
+    @Override
+    public String toString() {
+        return x + "#" + y;
+    }
+}
+
+// FILE: 1.kt
+
+import test.Foo;
+
+class Child : Foo {
     constructor(): super() {}
     constructor(x: String): super(x) {}
     constructor(x: String, y: String): super(x, y) {}