KotlinUnusedImportInspection: support unresolved references

#KT-31331 Fixed

idea/testData/refactoring/move/kotlin/moveFile/moveFileWithPackageRename/moveFileWithPackageRename.test

@@ -1,5 +1,6 @@
 {
   "mainFile": "a/main.kt",
   "type": "MOVE_FILES",
-  "targetPackage": "b"
+  "targetPackage": "b",
+  "withRuntime": "true"
 }

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/misc/shortenCompanionObject2/after/b/foo.kt

@@ -1,4 +1,2 @@
 package b
 
-import java.util.function.IntPredicate
-

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/movePropertyToFile/after/a/main.kt

@@ -4,6 +4,6 @@ import b.test
 
 class Test {
     fun foo() {
-        test()
+        test
     }
 }

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/movePropertyToFile/before/a/main.kt

@@ -25,6 +25,6 @@ var <caret>test: String
 
 class Test {
     fun foo() {
-        test()
+        test
     }
 }

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/movePropertyToFile/movePropertyToFile.test

@@ -1,5 +1,6 @@
 {
   "mainFile": "a/main.kt",
   "type": "MOVE_KOTLIN_TOP_LEVEL_DECLARATIONS",
-  "targetFile": "b/dependency.kt"
+  "targetFile": "b/dependency.kt",
+  "withRuntime": "true"
 }

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/movePropertyToPackage/after/a/main.kt

@@ -4,6 +4,6 @@ import b.test
 
 class Test {
     fun foo() {
-        test()
+        test
     }
 }

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/movePropertyToPackage/before/a/main.kt

@@ -25,6 +25,6 @@ var <caret>test: String
 
 class Test {
     fun foo() {
-        test()
+        test
     }
 }

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/movePropertyToPackage/movePropertyToPackage.test

@@ -1,5 +1,6 @@
 {
   "mainFile": "a/main.kt",
   "type": "MOVE_KOTLIN_TOP_LEVEL_DECLARATIONS",
-  "targetPackage": "b"
+  "targetPackage": "b",
+  "withRuntime": "true"
 }