KT-12949 Type aliases are not considered for import when there is an unresolved reference

#KT-12949 Fixed

idea/src/org/jetbrains/kotlin/idea/quickfix/ImportFix.kt

@@ -197,6 +197,8 @@ internal abstract class OrdinaryImportFixBase<T : KtExpression>(expression: T) :
                     indicesHelper.getJvmClassesByName(name).filterTo(result, filterByCallType)
                 }
 
+                indicesHelper.getTopLevelTypeAliases { it == name }.filterTo(result, filterByCallType)
+
                 indicesHelper.getTopLevelCallablesByName(name).filterTo(result, filterByCallType)
             }
         }

idea/testData/quickfix/autoImports/typeAliasImport.after.kt

@@ -0,0 +1,8 @@
+import dependency.TestAlias
+
+// "Import" "true"
+// ERROR: Unresolved reference: TestAlias
+
+fun test() {
+    val a = <caret>TestAlias
+}

idea/testData/quickfix/autoImports/typeAliasImport.before.Dependency.kt

@@ -0,0 +1,3 @@
+package dependency
+
+typealias TestAlias = () -> Unit

idea/testData/quickfix/autoImports/typeAliasImport.before.Main.kt

@@ -0,0 +1,6 @@
+// "Import" "true"
+// ERROR: Unresolved reference: TestAlias
+
+fun test() {
+    val a = <caret>TestAlias
+}

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

@@ -473,6 +473,12 @@ public class QuickFixMultiFileTestGenerated extends AbstractQuickFixMultiFileTes
             doTestWithExtraFile(fileName);
         }
 
+        @TestMetadata("typeAliasImport.before.Main.kt")
+        public void testTypeAliasImport() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("idea/testData/quickfix/autoImports/typeAliasImport.before.Main.kt");
+            doTestWithExtraFile(fileName);
+        }
+
         @TestMetadata("unaryMinusOperator.before.Main.kt")
         public void testUnaryMinusOperator() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("idea/testData/quickfix/autoImports/unaryMinusOperator.before.Main.kt");