Safe Delete: Move test classes and test data to refactoring directory

idea/testData/refactoring/safeDelete/deleteFunction/javaFunctionWithKotlin/mixedHierarchy1.java

@@ -0,0 +1,10 @@
+interface A {
+    public void <caret>foo();
+}
+
+abstract class C implements B {
+    @Override
+    public void foo() {
+
+    }
+}

idea/testData/refactoring/safeDelete/deleteFunction/javaFunctionWithKotlin/mixedHierarchy1.java.after

@@ -0,0 +1,5 @@
+interface A {
+}
+
+abstract class C implements B {
+}

idea/testData/refactoring/safeDelete/deleteFunction/javaFunctionWithKotlin/mixedHierarchy1.kt

@@ -0,0 +1,11 @@
+interface B: A {
+    public override fun foo() {
+        throw UnsupportedOperationException()
+    }
+}
+
+class D: C() {
+    public override fun foo() {
+        throw UnsupportedOperationException()
+    }
+}

idea/testData/refactoring/safeDelete/deleteFunction/javaFunctionWithKotlin/mixedHierarchy1.kt.after

@@ -0,0 +1,5 @@
+interface B: A {
+}
+
+class D: C() {
+}

idea/testData/refactoring/safeDelete/deleteFunction/javaFunctionWithKotlin/mixedHierarchy2.java

@@ -0,0 +1,10 @@
+interface A {
+    public void foo();
+}
+
+abstract class C implements B {
+    @Override
+    public void <caret>foo() {
+
+    }
+}

idea/testData/refactoring/safeDelete/deleteFunction/javaFunctionWithKotlin/mixedHierarchy2.java.after

@@ -0,0 +1,6 @@
+interface A {
+    public void foo();
+}
+
+abstract class C implements B {
+}

idea/testData/refactoring/safeDelete/deleteFunction/javaFunctionWithKotlin/mixedHierarchy2.kt

@@ -0,0 +1,11 @@
+interface B: A {
+    public override fun foo() {
+        throw UnsupportedOperationException()
+    }
+}
+
+class D: C() {
+    public override fun foo() {
+        throw UnsupportedOperationException()
+    }
+}

idea/testData/refactoring/safeDelete/deleteFunction/javaFunctionWithKotlin/mixedHierarchy2.kt.after

@@ -0,0 +1,8 @@
+interface B: A {
+    public override fun foo() {
+        throw UnsupportedOperationException()
+    }
+}
+
+class D: C() {
+}