tint: enable CTS tests for countLeadingZeros and countTrailingZeros

Bug: tint:1581
Change-Id: I198ca0e032300067bf12c1046e66a5514f8ae981
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/107980
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
diff --git a/webgpu-cts/expectations.txt b/webgpu-cts/expectations.txt
index 8525aa4..c372520 100644
--- a/webgpu-cts/expectations.txt
+++ b/webgpu-cts/expectations.txt
@@ -458,22 +458,6 @@
 crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,cosh:f32:inputSource="const";vectorize=2 [ Failure ]
 crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,cosh:f32:inputSource="const";vectorize=3 [ Failure ]
 crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,cosh:f32:inputSource="const";vectorize=4 [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countLeadingZeros:i32:inputSource="const";vectorize="_undef_" [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countLeadingZeros:i32:inputSource="const";vectorize=2 [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countLeadingZeros:i32:inputSource="const";vectorize=3 [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countLeadingZeros:i32:inputSource="const";vectorize=4 [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countLeadingZeros:u32:inputSource="const";vectorize="_undef_" [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countLeadingZeros:u32:inputSource="const";vectorize=2 [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countLeadingZeros:u32:inputSource="const";vectorize=3 [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countLeadingZeros:u32:inputSource="const";vectorize=4 [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countTrailingZeros:i32:inputSource="const";vectorize="_undef_" [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countTrailingZeros:i32:inputSource="const";vectorize=2 [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countTrailingZeros:i32:inputSource="const";vectorize=3 [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countTrailingZeros:i32:inputSource="const";vectorize=4 [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countTrailingZeros:u32:inputSource="const";vectorize="_undef_" [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countTrailingZeros:u32:inputSource="const";vectorize=2 [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countTrailingZeros:u32:inputSource="const";vectorize=3 [ Failure ]
-crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,countTrailingZeros:u32:inputSource="const";vectorize=4 [ Failure ]
 crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,degrees:f32:inputSource="const";vectorize="_undef_" [ Failure ]
 crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,degrees:f32:inputSource="const";vectorize=2 [ Failure ]
 crbug.com/tint/1613 webgpu:shader,execution,expression,call,builtin,degrees:f32:inputSource="const";vectorize=3 [ Failure ]