[gardening] Mark some slow tests.

Change-Id: I68c45a230a77819af29264eb352cba35e3036787
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/427326
Commit-Queue: Ryan Macnak <[email protected]>
Reviewed-by: Alexander Aprelev <[email protected]>

Author: rmacnak-google

runtime/tests/vm/vm.status

@@ -17,14 +17,17 @@ cc/TTS_STC_ManyAsserts: Pass, Slow # Generates 10k classes that are put into an
 cc/TypeArguments_Cache_ManyInstantiations: Pass, Slow
 dart/analyze_snapshot_binary_test: Pass, Slow # Runs various subprocesses for testing AOT.
 dart/async_igoto_threshold_flag_test: Pass, Slow
+dart/b162922506_test: Pass, Slow # Generated very large program
 dart/boxmint_test: Pass, Slow # Uses slow path
 dart/byte_array_optimized_test: Pass, Slow
 dart/byte_array_test: Pass, Slow # Uses --opt-counter-threshold=10
 dart/data_uri_import_test/none: SkipByDesign
 dart/disassemble_aot_test: Pass, Slow # Spawns several subprocesses
 dart/emit_aot_size_info_flag_test: Pass, Slow # Spawns several subprocesses
 dart/gc/*: Pass, Slow # Tests that involve expensive heap verification steps
+dart/gen_snapshot_include_resolved_urls_test: Pass, Slow # Spawns several subprocesses
 dart/hash_map_probes_limit_test: Pass, Slow # Test includes large program compilation.
+dart/incompatible_loading_unit_test: Pass, Slow # Spawns several subprocesses
 dart/isolates/*: Pass, Slow # Tests use many isolates and take a longer time.
 dart/isolates/concurrency_stress_sanity_test: Pass, Slow # Spawns subprocesses
 dart/isolates/fast_object_copy_test: Pass, Slow # Slow due to doing a lot of transitive object copies.
@@ -34,8 +37,10 @@ dart/regress32619_test: Pass, Slow
 dart/slow_path_shared_stub_test: Pass, Slow # Uses --shared-slow-path-triggers-gc flag.
 dart/snapshot_version_test: Skip # This test is a Dart1 test (script snapshot)
 dart/spawn_uri_aot_test: Pass, Slow # Runs various subprocesses for testing AOT.
+dart/split_aot_kernel_generation_test: Pass, Slow # Spawns several subprocesses
 dart/stack_overflow_shared_test: Pass, Slow # Uses --shared-slow-path-triggers-gc flag.
 dart/timeline_recorder_file_test: Pass, Slow
+dart/use_dwarf_stack_traces_flag_test: Pass, Slow # Spawns several subprocesses
 
 [ $arch == ia32 ]
 dart/cachable_idempotent_test: Skip # CachableIdempotent calls are not supported in ia32 because it has no object pool.

tests/standalone/standalone.status

@@ -11,6 +11,7 @@ io/large_file_read_small_file_test: Slow, Pass # Test reads small file 1M times
 io/non_utf8_directory_test: Skip # Issue 33519. Temp files causing bots to go purple.
 io/non_utf8_file_test: Skip # Issue 33519. Temp files causing bots to go purple.
 io/non_utf8_link_test: Skip # Issue 33519. Temp files causing bots to go purple.
+io/stdout_stderr_test: Pass, Slow # Spawns many subprocesses
 package/scenarios/invalid/invalid_utf8_test: CompileTimeError
 package/scenarios/invalid/non_existent_packages_file_test: CompileTimeError