Fix test data for reconcile package with directory test

(cherry picked from commit b926e02)

idea/testData/multiFileIntentions/reconcilePackageWithDirectory/changeToDefaultPackage/after/usagesWithFqNames.java

@@ -1,6 +1,6 @@
 class Test {
     static void test() {
         new Foo();
-        _DefaultPackage.foo();
+        TestKt.foo();
     }
 }

idea/testData/multiFileIntentions/reconcilePackageWithDirectory/changeToDefaultPackage/after/usagesWithImports.java

@@ -1,4 +1,4 @@
-import static _DefaultPackage.foo;
+import static TestKt.foo;
 
 class Test {
     static void test() {

idea/testData/multiFileIntentions/reconcilePackageWithDirectory/changeToDefaultPackage/before/usagesWithFqNames.java

@@ -1,6 +1,6 @@
 class Test {
     static void test() {
         new source.Foo();
-        source.SourcePackage.foo();
+        source.TestKt.foo();
     }
 }

idea/testData/multiFileIntentions/reconcilePackageWithDirectory/changeToDefaultPackage/before/usagesWithImports.java

@@ -1,5 +1,5 @@
 import source.Foo;
-import static source.SourcePackage.foo;
+import static source.TestKt.foo;
 
 class Test {
     static void test() {