Convert AddOpenToClassDeclarationTest to regular multifile quickfix test

idea/testData/quickfix/modifiers/addOpenToClassDeclaration/finalJavaClass/FinalJavaUpperBound.before.kt

@@ -1,4 +0,0 @@
-// "class org.jetbrains.kotlin.idea.quickfix.AddModifierFix" "false"
-import testPackage.*
-
-class foo<T : JavaClass>() {}

idea/testData/quickfix/modifiers/addOpenToClassDeclaration/finalJavaSupertype.before.Dependency.java

@@ -1,3 +1 @@
-package testPackage;
-
 public final class JavaClass {}

idea/testData/quickfix/modifiers/addOpenToClassDeclaration/finalJavaSupertype.before.Main.kt

@@ -1,6 +1,4 @@
 // "class org.jetbrains.kotlin.idea.quickfix.AddModifierFix" "false"
 // ERROR: This type is final, so it cannot be inherited from
 // ACTION: Create test
-import testPackage.*
-
 class foo : <caret>JavaClass() {}

idea/testData/quickfix/modifiers/addOpenToClassDeclaration/finalJavaUpperBound.before.Dependency.java

@@ -0,0 +1 @@
+public final class JavaClass {}

idea/testData/quickfix/modifiers/addOpenToClassDeclaration/finalJavaUpperBound.before.Main.kt

@@ -0,0 +1,5 @@
+// "class org.jetbrains.kotlin.idea.quickfix.AddModifierFix" "false"
+// ACTION: Create test
+// ACTION: Inline type parameter
+// ACTION: Remove final upper bound
+class foo<T : <caret>JavaClass>() {}