KT-13728 Implicitly imported functions should be above in completion then non-imported

#KT-13728 Fixed

idea/idea-completion/src/org/jetbrains/kotlin/idea/completion/Weighers.kt

@@ -230,6 +230,7 @@ object PreferMatchingItemWeigher : LookupElementWeigher("kotlin.preferMatching",
         keywordExactMatch,
         defaultExactMatch,
         functionExactMatch,
+        notImportedExactMatch,
         specialExactMatch,
         notExactMatch
     }
@@ -248,6 +249,7 @@ object PreferMatchingItemWeigher : LookupElementWeigher("kotlin.preferMatching",
                     val smartCompletionPriority = element.getUserData(SMART_COMPLETION_ITEM_PRIORITY_KEY)
                     when {
                         smartCompletionPriority != null && smartCompletionPriority != SmartCompletionItemPriority.DEFAULT -> Weight.specialExactMatch
+                        element.getUserData(NOT_IMPORTED_KEY) != null -> Weight.notImportedExactMatch
                         o.descriptor is FunctionDescriptor -> Weight.functionExactMatch
                         else -> Weight.defaultExactMatch
                     }

idea/idea-completion/testData/basic/multifile/ExactMatchPreferImported/ExactMatchPreferImported.dependency1.kt

@@ -0,0 +1,3 @@
+package other
+
+class TODO

idea/idea-completion/testData/basic/multifile/ExactMatchPreferImported/ExactMatchPreferImported.dependency2.kt

@@ -0,0 +1,3 @@
+package kotlin
+
+public inline fun TODO(): Nothing = throw NotImplementedError()

idea/idea-completion/testData/basic/multifile/ExactMatchPreferImported/ExactMatchPreferImported.kt

@@ -0,0 +1,5 @@
+fun foo(): Any? = TODO<caret>
+
+// WITH_ORDER
+// EXIST: { itemText: "TODO", tailText:"() (kotlin)" }
+// EXIST: { itemText: "TODO", tailText:" (other)" }

idea/idea-completion/tests/org/jetbrains/kotlin/idea/completion/test/MultiFileJvmBasicCompletionTestGenerated.java

@@ -95,6 +95,12 @@ public class MultiFileJvmBasicCompletionTestGenerated extends AbstractMultiFileJ
         doTest(fileName);
     }
 
+    @TestMetadata("ExactMatchPreferImported")
+    public void testExactMatchPreferImported() throws Exception {
+        String fileName = KotlinTestUtils.navigationMetadata("idea/idea-completion/testData/basic/multifile/ExactMatchPreferImported/");
+        doTest(fileName);
+    }
+
     @TestMetadata("ExcludedClass")
     public void testExcludedClass() throws Exception {
         String fileName = KotlinTestUtils.navigationMetadata("idea/idea-completion/testData/basic/multifile/ExcludedClass/");