PackageDirectoryMismatchInspection should report when a package statement is missing

#KT-13549 Fixed

idea/testData/multiFileLocalInspections/moveFileToPackageMatchingDirectory/moveToDefaultDirectoryWithoutPackageKeyword/after/test.kt

@@ -0,0 +1,6 @@
+
+class Foo
+
+fun foo() {
+
+}

idea/testData/multiFileLocalInspections/moveFileToPackageMatchingDirectory/moveToDefaultDirectoryWithoutPackageKeyword/before/source/test.kt

@@ -0,0 +1,6 @@
+<caret>
+class Foo
+
+fun foo() {
+
+}

idea/testData/multiFileLocalInspections/moveFileToPackageMatchingDirectory/moveToDefaultDirectoryWithoutPackageKeyword/moveToDefaultDirectoryWithoutPackageKeyword.test

@@ -0,0 +1,5 @@
+{
+  "mainFile": "source/test.kt",
+  "inspectionClass": "org.jetbrains.kotlin.idea.refactoring.move.changePackage.PackageDirectoryMismatchInspection",
+  "fix": "Move file to source root"
+}