wgsl: Replace [[decoration]] with @decoration

Deprecate the old syntax. Migrate everything to the new syntax.

Bug: tint:1382
Change-Id: Ide12b2e927b17dc93b9714c7049090864cc568d3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/77260
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: David Neto <dneto@google.com>

test/var/initialization/function/array.wgsl

@@ -1,4 +1,4 @@
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
     var v : array<i32, 3>;
     _ = v;

test/var/initialization/function/array.wgsl.expected.wgsl

@@ -1,4 +1,4 @@
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
   var v : array<i32, 3>;
   _ = v;

test/var/initialization/function/matrix.wgsl

@@ -1,4 +1,4 @@
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
     var v : mat2x3<f32>;
     _ = v;

test/var/initialization/function/matrix.wgsl.expected.wgsl

@@ -1,4 +1,4 @@
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
   var v : mat2x3<f32>;
   _ = v;

test/var/initialization/function/scalar.wgsl

@@ -1,4 +1,4 @@
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
     var v : i32;
     _ = v;

test/var/initialization/function/scalar.wgsl.expected.wgsl

@@ -1,4 +1,4 @@
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
   var v : i32;
   _ = v;

test/var/initialization/function/struct.wgsl

@@ -3,7 +3,7 @@ struct S {
     b : f32;
 };
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
     var v : S;
     _ = v;

test/var/initialization/function/struct.wgsl.expected.wgsl

@@ -3,7 +3,7 @@ struct S {
   b : f32;
 }
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
   var v : S;
   _ = v;

test/var/initialization/function/vector.wgsl

@@ -1,4 +1,4 @@
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
     var v : vec3<i32>;
     _ = v;

test/var/initialization/function/vector.wgsl.expected.wgsl

@@ -1,4 +1,4 @@
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
   var v : vec3<i32>;
   _ = v;

test/var/initialization/private/array.wgsl

@@ -1,6 +1,6 @@
 var<private> v : array<i32, 3>;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
     _ = v;
 }

test/var/initialization/private/array.wgsl.expected.wgsl

@@ -1,6 +1,6 @@
 var<private> v : array<i32, 3>;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
   _ = v;
 }

test/var/initialization/private/matrix.wgsl

@@ -1,6 +1,6 @@
 var<private> v : mat2x3<f32>;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
     _ = v;
 }

test/var/initialization/private/matrix.wgsl.expected.wgsl

@@ -1,6 +1,6 @@
 var<private> v : mat2x3<f32>;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
   _ = v;
 }

test/var/initialization/private/scalar.wgsl

@@ -1,6 +1,6 @@
 var<private> v : i32;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
     _ = v;
 }

test/var/initialization/private/scalar.wgsl.expected.wgsl

@@ -1,6 +1,6 @@
 var<private> v : i32;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
   _ = v;
 }

test/var/initialization/private/struct.wgsl

@@ -5,7 +5,7 @@ struct S {
 
 var<private> v : S;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
     _ = v;
 }

test/var/initialization/private/struct.wgsl.expected.wgsl

@@ -5,7 +5,7 @@ struct S {
 
 var<private> v : S;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
   _ = v;
 }

test/var/initialization/private/vector.wgsl

@@ -1,6 +1,6 @@
 var<private> v : vec3<i32>;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
     _ = v;
 }

test/var/initialization/private/vector.wgsl.expected.wgsl

@@ -1,6 +1,6 @@
 var<private> v : vec3<i32>;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
   _ = v;
 }

test/var/initialization/workgroup/array.wgsl

@@ -1,6 +1,6 @@
 var<workgroup> v : array<i32, 3>;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
     _ = v;
 }

test/var/initialization/workgroup/array.wgsl.expected.wgsl

@@ -1,6 +1,6 @@
 var<workgroup> v : array<i32, 3>;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
   _ = v;
 }

test/var/initialization/workgroup/matrix.wgsl

@@ -1,6 +1,6 @@
 var<workgroup> v : mat2x3<f32>;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
     _ = v;
 }

test/var/initialization/workgroup/matrix.wgsl.expected.wgsl

@@ -1,6 +1,6 @@
 var<workgroup> v : mat2x3<f32>;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
   _ = v;
 }

test/var/initialization/workgroup/scalar.wgsl

@@ -1,6 +1,6 @@
 var<workgroup> v : i32;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
     _ = v;
 }

test/var/initialization/workgroup/scalar.wgsl.expected.wgsl

@@ -1,6 +1,6 @@
 var<workgroup> v : i32;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
   _ = v;
 }

test/var/initialization/workgroup/struct.wgsl

@@ -5,7 +5,7 @@ struct S {
 
 var<workgroup> v : S;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
     _ = v;
 }

test/var/initialization/workgroup/struct.wgsl.expected.wgsl

@@ -5,7 +5,7 @@ struct S {
 
 var<workgroup> v : S;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
   _ = v;
 }

test/var/initialization/workgroup/vector.wgsl

@@ -1,6 +1,6 @@
 var<workgroup> v : vec3<i32>;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
     _ = v;
 }

test/var/initialization/workgroup/vector.wgsl.expected.wgsl

@@ -1,6 +1,6 @@
 var<workgroup> v : vec3<i32>;
 
-[[stage(compute), workgroup_size(1)]]
+@stage(compute) @workgroup_size(1)
 fn main() {
   _ = v;
 }