Mark error scope stackDepth=100000 tests as slow

These tests regularly take 7+ seconds to complete due to their size

Change-Id: I5ee554610275ed68f4eab7a821c4278a2c478595
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/100820
Kokoro: Kokoro <noreply+kokoro@google.com>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Austin Eng <enga@chromium.org>
diff --git a/webgpu-cts/expectations.txt b/webgpu-cts/expectations.txt
index d921b7b..bc1a77f 100644
--- a/webgpu-cts/expectations.txt
+++ b/webgpu-cts/expectations.txt
@@ -189,6 +189,13 @@
 crbug.com/dawn/1398 [ webgpu-adapter-default win ] webgpu:web_platform,copyToTexture,canvas:copy_contents_from_gpu_context_canvas:* [ Slow ]
 
 ################################################################################
+# Large and slow tests
+# KEEP
+################################################################################
+webgpu:api,validation,error_scope:current_scope:errorFilter="validation";stackDepth=100000 [ Slow ]
+webgpu:api,validation,error_scope:current_scope:errorFilter="out-of-memory";stackDepth=100000 [ Slow ]
+
+################################################################################
 # webgpu:shader,execution,robust_access
 # Slow tests - win
 # KEEP
@@ -619,9 +626,6 @@
 crbug.com/dawn/0000 webgpu:api,validation,encoding,beginComputePass:timestampWrites,same_location:locationA="end";locationB="end" [ Failure ]
 crbug.com/dawn/0000 webgpu:api,validation,encoding,beginComputePass:timestamp_query_set,device_mismatch:mismatched=true [ Failure ]
 crbug.com/dawn/0000 webgpu:api,validation,encoding,beginRenderPass:timestamp_query_set,device_mismatch:mismatched=true [ Failure ]
-crbug.com/dawn/0000 [ dawn-no-backend-validation intel-gen-9 monterey ] webgpu:api,validation,error_scope:current_scope:errorFilter="out-of-memory";stackDepth=100000 [ Failure ]
-crbug.com/dawn/0000 [ dawn-no-backend-validation intel-gen-9 win10 ] webgpu:api,validation,error_scope:current_scope:errorFilter="out-of-memory";stackDepth=100000 [ Failure ]
-crbug.com/dawn/0000 [ dawn-no-backend-validation intel-gen-9 win10 ] webgpu:api,validation,error_scope:current_scope:errorFilter="validation";stackDepth=100000 [ Failure ]
 crbug.com/dawn/0000 [ dawn-no-backend-validation nvidia-0x2184 win10 ] webgpu:api,validation,image_copy,texture_related:origin_alignment:method="CopyB2T";format="bc2-rgba-unorm";depthOrArrayLayers=1;dimension="2d" [ Failure ]
 crbug.com/dawn/0000 [ dawn-no-backend-validation intel-gen-9 monterey ] webgpu:api,validation,image_copy,texture_related:origin_alignment:method="CopyB2T";format="bc5-rg-snorm";depthOrArrayLayers=1;dimension="2d" [ Failure ]
 crbug.com/dawn/0000 [ monterey ] webgpu:api,validation,queue,copyToTexture,CopyExternalImageToTexture:destination_texture,dimension:dimension="1d" [ Failure ]