"Code Cleanup": don't remove deprecated imports when file has @file:Suppress("DEPRECATION") annotation

#KT-33594 Fixed

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

@@ -49,7 +49,7 @@ class KotlinCleanupInspection : LocalInspectionTool(), CleanupLocalInspectionToo
 
         val problemDescriptors = arrayListOf<ProblemDescriptor>()
 
-        val importsToRemove = file.importDirectives.filter { DeprecatedSymbolUsageFix.isImportToBeRemoved(it) }
+        val importsToRemove = DeprecatedSymbolUsageFix.importDirectivesToBeRemoved(file)
         for (import in importsToRemove) {
             val removeImportFix = RemoveImportFix(import)
             val problemDescriptor = createProblemDescriptor(import, removeImportFix.text, listOf(removeImportFix), file, manager)

idea/src/org/jetbrains/kotlin/idea/quickfix/replaceWith/DeprecatedSymbolUsageFix.kt

@@ -20,16 +20,21 @@ import com.intellij.codeInsight.intention.HighPriorityAction
 import com.intellij.codeInsight.intention.IntentionAction
 import com.intellij.openapi.editor.Editor
 import com.intellij.openapi.project.Project
+import org.jetbrains.kotlin.builtins.KotlinBuiltIns
 import org.jetbrains.kotlin.diagnostics.Diagnostic
 import org.jetbrains.kotlin.idea.KotlinBundle
+import org.jetbrains.kotlin.idea.caches.resolve.resolveToCall
 import org.jetbrains.kotlin.idea.codeInliner.UsageReplacementStrategy
 import org.jetbrains.kotlin.idea.core.moveCaret
 import org.jetbrains.kotlin.idea.core.targetDescriptors
 import org.jetbrains.kotlin.idea.quickfix.CleanupFix
 import org.jetbrains.kotlin.idea.quickfix.KotlinSingleIntentionActionFactory
+import org.jetbrains.kotlin.psi.KtFile
 import org.jetbrains.kotlin.psi.KtImportDirective
 import org.jetbrains.kotlin.psi.KtReferenceExpression
+import org.jetbrains.kotlin.psi.KtStringTemplateExpression
 import org.jetbrains.kotlin.resolve.calls.callUtil.getCalleeExpressionIfAny
+import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameSafe
 
 class DeprecatedSymbolUsageFix(
     element: KtReferenceExpression,
@@ -55,7 +60,23 @@ class DeprecatedSymbolUsageFix(
             return DeprecatedSymbolUsageFix(referenceExpression, replacement)
         }
 
-        fun isImportToBeRemoved(import: KtImportDirective): Boolean {
+        fun importDirectivesToBeRemoved(file: KtFile): List<KtImportDirective> {
+            if (file.hasAnnotationToSuppressDeprecation()) return emptyList()
+            return file.importDirectives.filter { isImportToBeRemoved(it) }
+        }
+
+        private fun KtFile.hasAnnotationToSuppressDeprecation(): Boolean {
+            val suppressAnnotationEntry = annotationEntries.firstOrNull {
+                it.shortName?.asString() == "Suppress"
+                        && it.resolveToCall()?.resultingDescriptor?.containingDeclaration?.fqNameSafe == KotlinBuiltIns.FQ_NAMES.suppress
+            } ?: return false
+            return suppressAnnotationEntry.valueArguments.any {
+                val text = (it.getArgumentExpression() as? KtStringTemplateExpression)?.entries?.singleOrNull()?.text ?: return@any false
+                text.equals("DEPRECATION", ignoreCase = true)
+            }
+        }
+
+        private fun isImportToBeRemoved(import: KtImportDirective): Boolean {
             if (import.isAllUnder) return false
 
             val targetDescriptors = import.targetDescriptors()

idea/testData/inspections/cleanup/fileWithAnnotationToSuppressDeprecation/deprecatedSymbols.kt

@@ -0,0 +1,6 @@
+package bar
+
+interface I
+
+@Deprecated("", ReplaceWith("I"))
+interface Bar : I

idea/testData/inspections/cleanup/fileWithAnnotationToSuppressDeprecation/fileWithAnnotationToSuppressDeprecation.kt

@@ -0,0 +1,7 @@
+@file:Suppress("DEPRECATION")
+
+package foo
+
+import bar.Bar
+
+fun foo(x: Bar) {}

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

@@ -0,0 +1,7 @@
+@file:Suppress("DEPRECATION")
+
+package foo
+
+import bar.Bar
+
+fun foo(x: Bar) {}

idea/tests/org/jetbrains/kotlin/idea/inspections/KotlinCleanupInspectionTest.kt

@@ -17,16 +17,16 @@ import org.jetbrains.kotlin.test.JUnit3WithIdeaConfigurationRunner
 import org.junit.runner.RunWith
 
 @RunWith(JUnit3WithIdeaConfigurationRunner::class)
-class KotlinCleanupInspectionTest() : KotlinLightCodeInsightFixtureTestCase() {
+class KotlinCleanupInspectionTest : KotlinLightCodeInsightFixtureTestCase() {
     override fun getTestDataPath(): String = PluginTestCaseBase.getTestDataPathBase() + "/inspections/cleanup"
 
     override fun getProjectDescriptor(): LightProjectDescriptor = KotlinWithJdkAndRuntimeLightProjectDescriptor.INSTANCE
 
-    private fun doTest(result: String, vararg files: String) {
+    private fun doTest(dir: String, result: String, vararg files: String) {
         myFixture.enableInspections(KotlinCleanupInspection::class.java)
         myFixture.enableInspections(SortModifiersInspection::class.java)
         myFixture.enableInspections(RedundantModalityModifierInspection::class.java)
-        myFixture.configureByFiles(*files)
+        myFixture.configureByFiles(*files.map { "$dir/$it" }.toTypedArray())
 
         val project = myFixture.project
         val managerEx = InspectionManager.getInstance(project)
@@ -35,10 +35,19 @@ class KotlinCleanupInspectionTest() : KotlinLightCodeInsightFixtureTestCase() {
         val profile = InspectionProjectProfileManager.getInstance(project).currentProfile
         globalContext.codeCleanup(analysisScope, profile, "Cleanup", null, true)
 
-        myFixture.checkResultByFile(result)
+        myFixture.checkResultByFile("$dir/$result")
     }
 
-    fun testCleanup() {
-        doTest("cleanup.kt.after", "cleanup.kt", "JavaAnn.java", "deprecatedSymbols.kt")
+    fun testBasic() {
+        doTest("basic", "basic.kt.after", "basic.kt", "JavaAnn.java", "deprecatedSymbols.kt")
+    }
+
+    fun testFileWithAnnotationToSuppressDeprecation() {
+        doTest(
+            "fileWithAnnotationToSuppressDeprecation",
+            "fileWithAnnotationToSuppressDeprecation.kt.after",
+            "fileWithAnnotationToSuppressDeprecation.kt",
+            "deprecatedSymbols.kt"
+        )
     }
 }