[K/N] Exapnd concurrent part of the GC mark phase (KT-58865)

* Build mark closure completely concurrent.
    * Reintroduce concurrent weak processing.
    * Request the second STW only to preare the heap for sweeping.

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

@@ -47,6 +47,8 @@ object BinaryOptions : BinaryOptionRegistry() {
 
     val concurrentWeakSweep by booleanOption()
 
+    val concurrentMarkMaxIterations by uintOption()
+
     val gcMutatorsCooperate by booleanOption()
 
     val auxGCThreads by uintOption()

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

@@ -197,6 +197,9 @@ class KonanConfig(val project: Project, val configuration: CompilerConfiguration
     val concurrentWeakSweep: Boolean
         get() = configuration.get(BinaryOptions.concurrentWeakSweep) ?: true
 
+    val concurrentMarkMaxIterations: UInt
+        get() = configuration.get(BinaryOptions.concurrentMarkMaxIterations) ?: 100U
+
     val gcMutatorsCooperate: Boolean by lazy {
         val mutatorsCooperate = configuration.get(BinaryOptions.gcMutatorsCooperate)
         if (gcMarkSingleThreaded) {

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

@@ -2795,6 +2795,7 @@ internal class CodeGeneratorVisitor(
         overrideRuntimeGlobal("Kotlin_destroyRuntimeMode", llvm.constInt32(context.config.destroyRuntimeMode.value))
         overrideRuntimeGlobal("Kotlin_gcMutatorsCooperate", llvm.constInt32(if (context.config.gcMutatorsCooperate) 1 else 0))
         overrideRuntimeGlobal("Kotlin_auxGCThreads", llvm.constInt32(context.config.auxGCThreads.toInt()))
+        overrideRuntimeGlobal("Kotlin_concurrentMarkMaxIterations", llvm.constInt32(context.config.concurrentMarkMaxIterations.toInt()))
         overrideRuntimeGlobal("Kotlin_workerExceptionHandling", llvm.constInt32(context.config.workerExceptionHandling.value))
         overrideRuntimeGlobal("Kotlin_suspendFunctionsFromAnyThreadFromObjC", llvm.constInt32(if (context.config.suspendFunctionsFromAnyThreadFromObjC) 1 else 0))
         val getSourceInfoFunctionName = when (context.config.sourceInfoType) {