Enable -Xobjc-generics by default

OBJC_INTEROP.md

@@ -232,21 +232,6 @@ generics defined on classes to help provide additional type information to the c
 Generic feature support for Objc and Swift differ from Kotlin, so the translation will inevitably lose some information,
 but the features supported retain meaningful information.
 
-### To Use
-
-Generics are currently not enabled by default. To have the framework header written with generics, add an experimental
-flag to the compiler config:
-
-<div class="sample" markdown="1" theme="idea" data-highlight-only>
-
-```kotlin
-binaries.framework {
-     freeCompilerArgs += "-Xobjc-generics"
-}
-```
-
-</div>
-
 #### Limitations
 
 Objective-C generics do not support all features of either Kotlin or Swift, so there will be some information lost
@@ -327,6 +312,20 @@ In Kotlin you can provide upper bounds for a generic type. Objective-C also supp
 in more complex cases, and is currently not supported in the Kotlin - Objective-C interop. The exception here being a non-null
 upper bound will make Objective-C methods/properties non-null.
 
+### To disable
+
+To have the framework header written without generics, add the flag to the compiler config:
+
+<div class="sample" markdown="1" theme="idea" data-highlight-only>
+
+```kotlin
+binaries.framework {
+     freeCompilerArgs += "-Xno-objc-generics"
+}
+```
+
+</div>
+
 ## Casting between mapped types
 
 When writing Kotlin code, an object may need to be converted from a Kotlin type

backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2Native.kt

@@ -218,7 +218,7 @@ class K2Native : CLICompiler<K2NativeCompilerArguments>() {
                 put(COVERAGE, arguments.coverage)
                 put(LIBRARIES_TO_COVER, arguments.coveredLibraries.toNonNullList())
                 arguments.coverageFile?.let { put(PROFRAW_PATH, it) }
-                put(OBJC_GENERICS, arguments.objcGenerics)
+                put(OBJC_GENERICS, !arguments.noObjcGenerics)
 
                 put(LIBRARIES_TO_CACHE, parseLibrariesToCache(arguments, configuration, outputKind))
                 val libraryToAddToCache = parseLibraryToAddToCache(arguments, configuration, outputKind)

backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2NativeCompilerArguments.kt

@@ -236,8 +236,8 @@ class K2NativeCompilerArguments : CommonCompilerArguments() {
     @Argument(value = "-Xcoverage-file", valueDescription = "<path>", description = "Save coverage information to the given file")
     var coverageFile: String? = null
 
-    @Argument(value = "-Xobjc-generics", description = "Enable experimental generics support for framework header")
+    @Argument(value = "-Xno-objc-generics", description = "Disable generics support for framework header")
-    var objcGenerics: Boolean = false
+    var noObjcGenerics: Boolean = false
 
     @Argument(value="-Xoverride-clang-options", valueDescription = "<arg1,arg2,...>", description = "Explicit list of Clang options")
     var clangOptions: Array<String>? = null

backend.native/tests/build.gradle

@@ -3788,7 +3788,6 @@ if (isAppleTarget(project)) {
                 }
 
                 extraOpts "-Xembed-bitcode-marker"
-                extraOpts "-Xobjc-generics"
                 extraOpts "-Xemit-lazy-objc-header=$lazyHeader"
                 extraOpts project.globalTestArgs
             }
@@ -3810,7 +3809,7 @@ if (isAppleTarget(project)) {
                     dependsOn ":${target}CrossDistRuntime", ':commonDistRuntime', ':distCompiler'
                 }
 
-                extraOpts "-Xembed-bitcode-marker", "-Xobjc-generics"
+                extraOpts "-Xembed-bitcode-marker"
                 extraOpts project.globalTestArgs
             }
         }
@@ -3832,7 +3831,6 @@ if (isAppleTarget(project)) {
                 }
 
                 extraOpts "-Xembed-bitcode"
-                extraOpts "-Xobjc-generics"
                 extraOpts project.globalTestArgs
             }
         }