[K/N] Add hard memory boundary ^KT-54727

kotlin-native/backend.native/tests/build.gradle

@@ -3150,8 +3150,7 @@ standaloneTest("stress_gc_allocations") {
         (project.testTarget != "watchos_simulator_arm64") &&
         !isNoopGC &&
         !isAggressiveGC && // TODO: Investigate why too slow
-        !runtimeAssertionsPanic && // New allocator with assertions makes this test very slow
-        (project.testTarget != "mingw_x64") // TODO: Fix on mingw.
+        !runtimeAssertionsPanic // New allocator with assertions makes this test very slow
     source = "runtime/memory/stress_gc_allocations.kt"
     flags = ['-tr', '-opt-in=kotlin.native.internal.InternalForKotlinNative']
 }

kotlin-native/backend.native/tests/runtime/memory/stress_gc_allocations.kt

@@ -62,6 +62,7 @@ fun test() {
     if (Platform.memoryModel == MemoryModel.EXPERIMENTAL) {
         kotlin.native.runtime.GC.autotune = false
         kotlin.native.runtime.GC.targetHeapBytes = retainLimit
+        kotlin.native.runtime.GC.pauseOnTargetHeapOverflow = true
     }
 
     // On Linux, the child process might immediately commit the same amount of memory as the parent.