Add "add type to callable reference LHS" quickfix to Code Cleanup

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

@@ -91,7 +91,8 @@ public class KotlinCleanupInspection(): LocalInspectionTool(), CleanupLocalInspe
             Errors.DEPRECATED_SYMBOL_WITH_MESSAGE,
             Errors.NON_CONST_VAL_USED_IN_CONSTANT_EXPRESSION,
             Errors.BACKING_FIELD_SYNTAX_DEPRECATED,
-            Errors.OPERATOR_MODIFIER_REQUIRED
+            Errors.OPERATOR_MODIFIER_REQUIRED,
+            Errors.CALLABLE_REFERENCE_TO_MEMBER_OR_EXTENSION_WITH_EMPTY_LHS
     )
 
     private fun Diagnostic.isObsoleteLabel(): Boolean {

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

@@ -31,7 +31,7 @@ import org.jetbrains.kotlin.resolve.lazy.BodyResolveMode
 
 class AddTypeToLHSOfCallableReferenceFix(
         expression: JetCallableReferenceExpression
-) : JetIntentionAction<JetCallableReferenceExpression>(expression) {
+) : JetIntentionAction<JetCallableReferenceExpression>(expression), CleanupFix {
     override fun getFamilyName() = "Add type to left-hand side"
     override fun getText() = familyName
 

idea/testData/inspections/cleanup/cleanup.kt

@@ -54,3 +54,9 @@ fun foo() {
     B() + B()
     B() + B()
 }
+
+class C {
+    fun foo() {}
+
+    fun bar() = ::foo
+}

idea/testData/inspections/cleanup/cleanup.kt.after

@@ -53,3 +53,9 @@ fun foo() {
     B() + B()
     B() + B()
 }
+
+class C {
+    fun foo() {}
+
+    fun bar() = C::foo
+}