[MPP] Add a flag to disable warnings about deprecated HMPP properties

KT-55891

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/mpp/MppDeprecatedPropertiesIt.kt

@@ -25,8 +25,10 @@ class MppDeprecatedPropertiesIt : KGPBaseTest() {
                     separator = System.lineSeparator(),
                 ) { (prop, value) -> "$prop=$value" }
             )
-
             checkDeprecations(isDeprecationExpected = true)
+
+            this.gradleProperties.appendText("kotlin.mpp.deprecatedProperties.nowarn=true${System.lineSeparator()}")
+            checkDeprecations(isDeprecationExpected = false)
         }
     }
 

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/PropertiesProvider.kt

@@ -28,6 +28,7 @@ import org.jetbrains.kotlin.gradle.plugin.PropertiesProvider.PropertyNames.KOTLI
 import org.jetbrains.kotlin.gradle.plugin.PropertiesProvider.PropertyNames.KOTLIN_MPP_ENABLE_PLATFORM_INTEGER_COMMONIZATION
 import org.jetbrains.kotlin.gradle.plugin.PropertiesProvider.PropertyNames.KOTLIN_MPP_HIERARCHICAL_STRUCTURE_BY_DEFAULT
 import org.jetbrains.kotlin.gradle.plugin.PropertiesProvider.PropertyNames.KOTLIN_MPP_HIERARCHICAL_STRUCTURE_SUPPORT
+import org.jetbrains.kotlin.gradle.plugin.PropertiesProvider.PropertyNames.KOTLIN_MPP_DEPRECATED_PROPERTIES_NO_WARN
 import org.jetbrains.kotlin.gradle.plugin.PropertiesProvider.PropertyNames.KOTLIN_MPP_IMPORT_ENABLE_SLOW_SOURCES_JAR_RESOLVER
 import org.jetbrains.kotlin.gradle.plugin.PropertiesProvider.PropertyNames.KOTLIN_NATIVE_DEPENDENCY_PROPAGATION
 import org.jetbrains.kotlin.gradle.plugin.PropertiesProvider.PropertyNames.KOTLIN_NATIVE_USE_XCODE_MESSAGE_STYLE
@@ -259,6 +260,9 @@ internal class PropertiesProvider private constructor(private val project: Proje
     val ignoreIncorrectNativeDependencies: Boolean?
         get() = booleanProperty(KOTLIN_NATIVE_IGNORE_INCORRECT_DEPENDENCIES)
 
+    val ignoreHmppDeprecationWarnings: Boolean?
+        get() = booleanProperty(KOTLIN_MPP_DEPRECATED_PROPERTIES_NO_WARN)
+
     /**
      * Enables individual test task reporting for aggregated test tasks.
      *
@@ -554,6 +558,7 @@ internal class PropertiesProvider private constructor(private val project: Proje
         const val KOTLIN_MPP_ENABLE_CINTEROP_COMMONIZATION = "kotlin.mpp.enableCInteropCommonization"
         const val KOTLIN_MPP_HIERARCHICAL_STRUCTURE_BY_DEFAULT = "kotlin.internal.mpp.hierarchicalStructureByDefault"
         const val KOTLIN_MPP_HIERARCHICAL_STRUCTURE_SUPPORT = "kotlin.mpp.hierarchicalStructureSupport"
+        const val KOTLIN_MPP_DEPRECATED_PROPERTIES_NO_WARN = "kotlin.mpp.deprecatedProperties.nowarn"
         const val KOTLIN_MPP_ANDROID_GRADLE_PLUGIN_COMPATIBILITY_NO_WARN = "kotlin.mpp.androidGradlePluginCompatibility.nowarn"
         const val KOTLIN_MPP_ANDROID_SOURCE_SET_LAYOUT_VERSION = "kotlin.mpp.androidSourceSetLayoutVersion"
         const val KOTLIN_MPP_ANDROID_SOURCE_SET_LAYOUT_VERSION_1_NO_WARN = "${KOTLIN_MPP_ANDROID_SOURCE_SET_LAYOUT_VERSION}1.nowarn"

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/internal/deprecationDiagnostics.kt

@@ -38,6 +38,7 @@ internal fun checkAndReportDeprecatedNativeTargets(project: Project) {
  */
 internal fun checkAndReportDeprecatedMppProperties(project: Project) {
     val projectProperties = project.kotlinPropertiesProvider
+    if (projectProperties.ignoreHmppDeprecationWarnings == true) return
 
     val warnings = deprecatedMppProperties.mapNotNull { propertyName ->
         projectProperties.property(propertyName)?.let { getMppDeprecationWarningMessageForProperty(propertyName) }