fix Kotlin#3648 added Ability to set DebugProbes.enableCreationStackTraces using system property

Author: PavlovIvan

kotlinx-coroutines-core/jvm/src/debug/AgentPremain.kt

@@ -21,16 +21,11 @@ import java.security.*
 @IgnoreJRERequirement // Never touched on Android
 internal object AgentPremain {
 
-    private val enableCreationStackTraces = runCatching {
-        System.getProperty("kotlinx.coroutines.debug.enable.creation.stack.trace")?.toBoolean()
-    }.getOrNull() ?: DebugProbesImpl.enableCreationStackTraces
-
     @JvmStatic
     @Suppress("UNUSED_PARAMETER")
     fun premain(args: String?, instrumentation: Instrumentation) {
         AgentInstallationType.isInstalledStatically = true
         instrumentation.addTransformer(DebugProbesTransformer)
-        DebugProbesImpl.enableCreationStackTraces = enableCreationStackTraces
         DebugProbesImpl.install()
         installSignalHandler()
     }

kotlinx-coroutines-core/jvm/src/debug/internal/DebugProbesImpl.kt

@@ -40,7 +40,9 @@ internal object DebugProbesImpl {
     private val sequenceNumber = atomic(0L)
 
     public var sanitizeStackTraces: Boolean = true
-    public var enableCreationStackTraces: Boolean = true
+    public var enableCreationStackTraces: Boolean = runCatching {
+        System.getProperty("kotlinx.coroutines.debug.enable.creation.stack.trace")?.toBoolean()
+    }.getOrNull() ?: true
 
     /*
      * Substitute for service loader, DI between core and debug modules.