Unused symbol: handling of import as alias not only for objects / enums #KT-11933 Fixed

idea/testData/quickfix/removeUnused/usedClassAsAlias.kt

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

idea/testData/quickfix/removeUnused/usedFunAsAlias.kt

@@ -0,0 +1,11 @@
+// "Safe delete 'useMe'" "false"
+// ACTION: Convert function to property
+// ACTION: Convert to block body
+// ACTION: Create test
+// ACTION: Specify return type explicitly
+
+import useMe as used
+
+fun <caret>useMe() = 0
+
+fun foo() = used()

idea/testData/quickfix/removeUnused/usedObjectAsAliasMulti.before.Dependency.kt

@@ -0,0 +1,5 @@
+import Imported as Alias
+
+fun foo() {
+    Alias.hashCode()
+}

idea/testData/quickfix/removeUnused/usedObjectAsAliasMulti.before.Main.kt

@@ -0,0 +1,3 @@
+// "Safe delete 'Imported'" "false"
+// ACTION: Create test
+object <caret>Imported

idea/testData/quickfix/removeUnused/usedVarAsAlias.kt

@@ -0,0 +1,9 @@
+// "Safe delete 'usedVar'" "false"
+// ACTION: Specify type explicitly
+import usedVar as used
+
+var <caret>usedVar = 0
+
+fun foo() {
+    used++
+}