Change Signature: Add test for KT-5784 "Generate import on function refactoring when parameter changes type"

#KT-5784 Fixed

idea/testData/refactoring/changeSignature/ChangeParameterTypeWithImportAfter.1.kt

@@ -0,0 +1,5 @@
+package b
+
+import a.Bar
+
+fun foo(o: Bar) {}

idea/testData/refactoring/changeSignature/ChangeParameterTypeWithImportAfter.kt

@@ -0,0 +1,9 @@
+package a
+
+import b.foo
+
+class Bar
+
+fun test() {
+    foo(Bar())
+}

idea/testData/refactoring/changeSignature/ChangeParameterTypeWithImportBefore.1.kt

@@ -0,0 +1,3 @@
+package b
+
+fun foo(o: Any) {}

idea/testData/refactoring/changeSignature/ChangeParameterTypeWithImportBefore.kt

@@ -0,0 +1,9 @@
+package a
+
+import b.foo
+
+class Bar
+
+fun test() {
+    <caret>foo(Bar())
+}

idea/tests/org/jetbrains/kotlin/idea/refactoring/changeSignature/JetChangeSignatureTest.java

@@ -722,6 +722,12 @@ public class JetChangeSignatureTest extends KotlinCodeInsightTestCase {
         doTest(changeInfo);
     }
 
+    public void testChangeParameterTypeWithImport() throws Exception {
+        JetChangeInfo changeInfo = getChangeInfo();
+        changeInfo.getNewParameters()[0].setCurrentTypeText("a.Bar");
+        doTest(changeInfo);
+    }
+
     @NotNull
     @Override
     protected String getTestDataPath() {