[heap] Disable --stress-concurrent-allocation for some tests

Two tests already test concurrent allocation. Another one measures
memory, so non-deterministic allocation would lead to higher memory
usage than anticipated.

Bug: v8:10315
Change-Id: If994233c87ea04076b850ffdf024f7783653e9db
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2352781Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69383}

test/cctest/heap/test-concurrent-allocation.cc

@@ -74,6 +74,7 @@ UNINITIALIZED_TEST(ConcurrentAllocationInOldSpace) {
   FLAG_max_old_space_size = 32;
   FLAG_concurrent_allocation = true;
   FLAG_local_heaps = true;
+  FLAG_stress_concurrent_allocation = false;
 
   v8::Isolate::CreateParams create_params;
   create_params.array_buffer_allocator = CcTest::array_buffer_allocator();
@@ -135,6 +136,7 @@ UNINITIALIZED_TEST(ConcurrentAllocationInLargeSpace) {
   FLAG_max_old_space_size = 32;
   FLAG_concurrent_allocation = true;
   FLAG_local_heaps = true;
+  FLAG_stress_concurrent_allocation = false;
 
   v8::Isolate::CreateParams create_params;
   create_params.array_buffer_allocator = CcTest::array_buffer_allocator();

test/cctest/heap/test-mark-compact.cc

@@ -377,8 +377,9 @@ intptr_t ShortLivingIsolate() {
   return MemoryInUse();
 }
 
-
-TEST(RegressJoinThreadsOnIsolateDeinit) {
+UNINITIALIZED_TEST(RegressJoinThreadsOnIsolateDeinit) {
+  // Memory is measured, do not allocate in background thread.
+  FLAG_stress_concurrent_allocation = false;
   intptr_t size_limit = ShortLivingIsolate() * 2;
   for (int i = 0; i < 10; i++) {
     CHECK_GT(size_limit, ShortLivingIsolate());