Native: use binary options machinery for memory model

Old compiler flag (-memory-model) will work too.

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

@@ -240,7 +240,8 @@ class K2Native : CLICompiler<K2NativeCompilerArguments>() {
                     }
                 }
 
-                put(MEMORY_MODEL, memoryModel)
+                // Can be overwritten after [parseBinaryOptions] below.
+                put(BinaryOptions.memoryModel, memoryModel)
 
                 when {
                     arguments.generateWorkerTestRunner -> put(GENERATE_TEST_RUNNER, TestRunnerKind.WORKER)

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/BinaryOptions.kt

@@ -13,6 +13,8 @@ import kotlin.properties.ReadOnlyProperty
 // users can pass these options using a -Xbinary=name=value compiler argument or corresponding Gradle DSL.
 object BinaryOptions : BinaryOptionRegistry() {
     val runtimeAssertionsMode by option<RuntimeAssertsMode>()
+
+    val memoryModel by option<MemoryModel>()
 }
 
 open class BinaryOption<T : Any>(

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/CacheSupport.kt

@@ -54,7 +54,7 @@ class CacheSupport(
 
         val ignoreReason = when {
             configuration.getBoolean(KonanConfigKeys.OPTIMIZATION) -> "for optimized compilation"
-            configuration.get(KonanConfigKeys.MEMORY_MODEL) == MemoryModel.EXPERIMENTAL -> "with experimental memory model"
+            configuration.get(BinaryOptions.memoryModel) == MemoryModel.EXPERIMENTAL -> "with experimental memory model"
             configuration.getBoolean(KonanConfigKeys.PROPERTY_LAZY_INITIALIZATION) -> "with experimental lazy top levels initialization"
             else -> null
         }

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanConfig.kt

@@ -56,7 +56,7 @@ class KonanConfig(val project: Project, val configuration: CompilerConfiguration
             ?: target.family.isAppleFamily // Default is true for Apple targets.
     val generateDebugTrampoline = debug && configuration.get(KonanConfigKeys.GENERATE_DEBUG_TRAMPOLINE) ?: false
 
-    val memoryModel: MemoryModel get() = configuration.get(KonanConfigKeys.MEMORY_MODEL)!!
+    val memoryModel: MemoryModel get() = configuration.get(BinaryOptions.memoryModel)!!
     val destroyRuntimeMode: DestroyRuntimeMode get() = configuration.get(KonanConfigKeys.DESTROY_RUNTIME_MODE)!!
     val gc: GC get() = configuration.get(KonanConfigKeys.GARBAGE_COLLECTOR)!!
     val gcAggressive: Boolean get() = configuration.get(KonanConfigKeys.GARBAGE_COLLECTOR_AGRESSIVE)!!

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanConfigurationKeys.kt

@@ -68,8 +68,6 @@ class KonanConfigKeys {
                 = CompilerConfigurationKey.create("list available targets")
         val MANIFEST_FILE: CompilerConfigurationKey<String?> 
                 = CompilerConfigurationKey.create("provide manifest addend file")
-        val MEMORY_MODEL: CompilerConfigurationKey<MemoryModel>
-                = CompilerConfigurationKey.create("memory model")
         val META_INFO: CompilerConfigurationKey<List<String>>
                 = CompilerConfigurationKey.create("generate metadata")
         val METADATA_KLIB: CompilerConfigurationKey<Boolean>