Import as alias with another name is now counted as usage itself #KT-11933 Fixed

idea/src/org/jetbrains/kotlin/idea/inspections/UnusedSymbolInspection.kt

@@ -251,6 +251,9 @@ class UnusedSymbolInspection : AbstractKotlinInspection() {
                                                    as? KtClassOrObject ?: return true
                         return importedFrom.declarations.none { it is KtNamedDeclaration && hasNonTrivialUsages(it) }
                     }
+                    else if (import.aliasName != null && import.aliasName != declaration.name) {
+                        return false
+                    }
                     else {
                         if (import.importedFqName != declaration.fqName) {
                             val importedDeclaration = import.importedReference?.getQualifiedElementSelector()?.mainReference?.resolve() as? KtNamedDeclaration

idea/testData/findUsages/kotlin/findObjectUsages/kotlinImportedObjectUsages.0.kt

@@ -0,0 +1,4 @@
+// PSI_ELEMENT: org.jetbrains.kotlin.psi.KtObjectDeclaration
+import Imported as Alias
+
+object <caret>Imported

idea/testData/findUsages/kotlin/findObjectUsages/kotlinImportedObjectUsages.results.txt

@@ -0,0 +1 @@
+Usage in import 2 import Imported as Alias

idea/testData/navigation/implementations/ObjectImported.kt

@@ -0,0 +1,5 @@
+import <caret>Imported as Alias
+
+object Imported
+
+// REF: (<root>).Imported

idea/testData/quickfix/removeUnused/usedObjectAsAlias.kt

@@ -0,0 +1,10 @@
+// "Safe delete 'Imported'" "false"
+// ACTION: Create test
+// ACTION: Move 'Imported' to separate file
+import Imported as Alias
+
+object <caret>Imported
+
+fun use() {
+    Alias.hashCode()
+}

idea/tests/org/jetbrains/kotlin/findUsages/FindUsagesTestGenerated.java

@@ -744,6 +744,12 @@ public class FindUsagesTestGenerated extends AbstractFindUsagesTest {
                 doTest(fileName);
             }
 
+            @TestMetadata("kotlinImportedObjectUsages.0.kt")
+            public void testKotlinImportedObjectUsages() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("idea/testData/findUsages/kotlin/findObjectUsages/kotlinImportedObjectUsages.0.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("kotlinLocalObjectUsages1.0.kt")
             public void testKotlinLocalObjectUsages1() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("idea/testData/findUsages/kotlin/findObjectUsages/kotlinLocalObjectUsages1.0.kt");

idea/tests/org/jetbrains/kotlin/idea/navigation/KotlinGotoImplementationTestGenerated.java

@@ -125,6 +125,12 @@ public class KotlinGotoImplementationTestGenerated extends AbstractKotlinGotoImp
         doTest(fileName);
     }
 
+    @TestMetadata("ObjectImported.kt")
+    public void testObjectImported() throws Exception {
+        String fileName = KotlinTestUtils.navigationMetadata("idea/testData/navigation/implementations/ObjectImported.kt");
+        doTest(fileName);
+    }
+
     @TestMetadata("OverridesInEnumEntries.kt")
     public void testOverridesInEnumEntries() throws Exception {
         String fileName = KotlinTestUtils.navigationMetadata("idea/testData/navigation/implementations/OverridesInEnumEntries.kt");

idea/tests/org/jetbrains/kotlin/idea/quickfix/QuickFixTestGenerated.java

@@ -6477,6 +6477,12 @@ public class QuickFixTestGenerated extends AbstractQuickFixTest {
             String fileName = KotlinTestUtils.navigationMetadata("idea/testData/quickfix/removeUnused/unusedTypeParameter.kt");
             doTest(fileName);
         }
+
+        @TestMetadata("usedObjectAsAlias.kt")
+        public void testUsedObjectAsAlias() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("idea/testData/quickfix/removeUnused/usedObjectAsAlias.kt");
+            doTest(fileName);
+        }
     }
 
     @TestMetadata("idea/testData/quickfix/removeUnusedReceiver")