Fix "Unused import" for 'provideDelegate'

#KT-31319 Fixed

idea/testData/editor/optimizeImports/common/ProvideDelegate.dependency.kt

@@ -0,0 +1,7 @@
+package a
+
+import kotlin.properties.ReadOnlyProperty
+import kotlin.reflect.KProperty
+
+class C
+operator fun C.provideDelegate(thisRef: Any, prop: KProperty<*>): ReadOnlyProperty<Any, C> = TODO()

idea/testData/editor/optimizeImports/common/ProvideDelegate.kt

@@ -0,0 +1,8 @@
+package b
+
+import a.C
+import a.provideDelegate
+
+class Example {
+    val c: C = C()
+}

idea/testData/editor/optimizeImports/common/ProvideDelegate.kt.after

@@ -0,0 +1,7 @@
+package b
+
+import a.C
+
+class Example {
+    val c: C = C()
+}

idea/testData/editor/optimizeImports/common/ProvideDelegate2.dependency.kt

@@ -0,0 +1,7 @@
+package a
+
+import kotlin.properties.ReadOnlyProperty
+import kotlin.reflect.KProperty
+
+class C
+operator fun C.provideDelegate(thisRef: Any, prop: KProperty<*>): ReadOnlyProperty<Any, C> = TODO()

idea/testData/editor/optimizeImports/common/ProvideDelegate2.kt

@@ -0,0 +1,8 @@
+package b
+
+import a.C
+import a.provideDelegate
+
+class Example {
+    val c: C by C()
+}

idea/testData/editor/optimizeImports/common/ProvideDelegate2.kt.after

@@ -0,0 +1,8 @@
+package b
+
+import a.C
+import a.provideDelegate
+
+class Example {
+    val c: C by C()
+}

idea/testData/inspections/unusedImport/inspectionData/expected.xml

@@ -106,4 +106,13 @@
         <problem_class severity="WARNING" attribute_key="NOT_USED_ELEMENT_ATTRIBUTES">Unused import directive</problem_class>
         <description>Unused import directive</description>
     </problem>
+
+    <problem>
+        <file>provideDelegate.kt</file>
+        <line>2</line>
+        <module>light_idea_test_case</module>
+        <entry_point TYPE="file" FQNAME="provideDelegate.kt" />
+        <problem_class severity="WARNING" attribute_key="NOT_USED_ELEMENT_ATTRIBUTES">Unused import directive</problem_class>
+        <description>Unused import directive</description>
+    </problem>
 </problems>

idea/testData/inspections/unusedImport/noUnusedProvideDelegate.Dependency.kt

@@ -0,0 +1,7 @@
+package onetwo
+
+import kotlin.properties.ReadOnlyProperty
+import kotlin.reflect.KProperty
+
+class C
+operator fun C.provideDelegate(thisRef: Any, prop: KProperty<*>): ReadOnlyProperty<Any, C> = TODO()

idea/testData/inspections/unusedImport/noUnusedProvideDelegate.kt

@@ -0,0 +1,6 @@
+import onetwo.C
+import onetwo.provideDelegate
+
+class Example {
+    val c: C by C()
+}

idea/testData/inspections/unusedImport/provideDelegate.Dependency.kt

@@ -0,0 +1,7 @@
+package a
+
+import kotlin.properties.ReadOnlyProperty
+import kotlin.reflect.KProperty
+
+class C
+operator fun C.provideDelegate(thisRef: Any, prop: KProperty<*>): ReadOnlyProperty<Any, C> = TODO()

idea/testData/inspections/unusedImport/provideDelegate.kt

@@ -0,0 +1,6 @@
+import a.C
+import a.provideDelegate
+
+class Example {
+    val c = C()
+}