Override/Implement: Add test to cover import optimization in the case of multiple import insertion (see #KT-4732)

idea/testData/codeInsight/overrideImplement/checkNotImportedTypesFromJava/bar/Bar.java

@@ -0,0 +1,5 @@
+package bar;
+
+public interface Bar {
+
+}

idea/testData/codeInsight/overrideImplement/checkNotImportedTypesFromJava/bar/Other.java

@@ -0,0 +1,5 @@
+package bar;
+
+public interface Other {
+
+}

idea/testData/codeInsight/overrideImplement/checkNotImportedTypesFromJava/foo/Foo.java

@@ -0,0 +1,9 @@
+package foo;
+
+import bar.Bar;
+import bar.Other;
+import java.util.ArrayList;
+
+public class Foo {
+    abstract public Bar foo(ArrayList<Integer> list, Other other);
+}

idea/testData/codeInsight/overrideImplement/checkNotImportedTypesFromJava/foo/Impl.kt

@@ -0,0 +1,7 @@
+package foo
+
+class Impl: Foo() {
+    <caret>
+}
+
+// KT-4732 Override/Implement action does not add all imports when "Optimize imports on the fly" is enabled

idea/testData/codeInsight/overrideImplement/checkNotImportedTypesFromJava/foo/Impl.kt.after

@@ -0,0 +1,14 @@
+package foo
+
+import java.util.ArrayList
+import bar.Other
+import bar.Bar
+
+class Impl: Foo() {
+
+    override fun foo(list: ArrayList<Int>?, other: Other?): Bar? {
+        throw UnsupportedOperationException()
+    }
+}
+
+// KT-4732 Override/Implement action does not add all imports when "Optimize imports on the fly" is enabled