Normalize all line endings to LF

And force shader code to always use LF endings.

Post merge, there were a number of files that crept in with CRLF endings.

Some Tint end-to-end tests take objection to CRLF endings.

CRLF endings can be detected with:

```
git grep -I --files-with-matches --perl-regexp '\r' HEAD
```

And fixed with:

```
find . -type f -exec dos2unix {} \;
```

Bug: dawn:1339
Change-Id: Iee054bafd15875de744b86e28393cd8229bd3cfa
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86140
Kokoro-Run: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>

test/tint/bug/fxc/gradient_in_varying_loop/1112.wgsl

@@ -1,28 +1,28 @@
-// 1112.wgsl
-@group(0) @binding(0) var Sampler: sampler;
-@group(0) @binding(1) var randomTexture: texture_2d<f32>;
-@group(0) @binding(2) var depthTexture: texture_2d<f32>;
-
-@stage(fragment)
-fn main(@location(0) vUV : vec2<f32>) -> @location(0) vec4<f32> {
-    let random: vec3<f32> = textureSample(randomTexture, Sampler, vUV).rgb;
-
-    var i = 0;
-    loop {
-        if (i < 1) {
-        } else {
-           break;
-        }
-        let offset : vec3<f32> = vec3<f32>(random.x);
-
-        if (offset.x < 0.0 || offset.y < 0.0 || offset.x > 1.0 || offset.y > 1.0) {
-            i = i + 1;
-            continue;
-        }
-
-        let sampleDepth : f32 = textureSample(depthTexture, Sampler, offset.xy).r;
-        i = i + 1;
-    }
-
-    return vec4<f32>(1.0);
-}
+// 1112.wgsl
+@group(0) @binding(0) var Sampler: sampler;
+@group(0) @binding(1) var randomTexture: texture_2d<f32>;
+@group(0) @binding(2) var depthTexture: texture_2d<f32>;
+
+@stage(fragment)
+fn main(@location(0) vUV : vec2<f32>) -> @location(0) vec4<f32> {
+    let random: vec3<f32> = textureSample(randomTexture, Sampler, vUV).rgb;
+
+    var i = 0;
+    loop {
+        if (i < 1) {
+        } else {
+           break;
+        }
+        let offset : vec3<f32> = vec3<f32>(random.x);
+
+        if (offset.x < 0.0 || offset.y < 0.0 || offset.x > 1.0 || offset.y > 1.0) {
+            i = i + 1;
+            continue;
+        }
+
+        let sampleDepth : f32 = textureSample(depthTexture, Sampler, offset.xy).r;
+        i = i + 1;
+    }
+
+    return vec4<f32>(1.0);
+}

test/tint/bug/fxc/indexed_assign_to_array_in_struct/1206.wgsl

@@ -1,23 +1,23 @@
-struct Simulation {
-  i : u32,
-};
-
-struct Particle {
-  position : array<vec3<f32>, 8>,
-  lifetime : f32,
-  color    : vec4<f32>,
-  velocity : vec3<f32>,
-};
-
-struct Particles {
-  p : array<Particle>,
-};
-
-@group(1) @binding(3) var<storage, read> particles : Particles;
-@group(1) @binding(4) var<uniform> sim : Simulation;
-
-@stage(compute) @workgroup_size(1)
-fn main() {
-  var particle = particles.p[0];
-  particle.position[sim.i] = particle.position[sim.i];
-}
+struct Simulation {
+  i : u32,
+};
+
+struct Particle {
+  position : array<vec3<f32>, 8>,
+  lifetime : f32,
+  color    : vec4<f32>,
+  velocity : vec3<f32>,
+};
+
+struct Particles {
+  p : array<Particle>,
+};
+
+@group(1) @binding(3) var<storage, read> particles : Particles;
+@group(1) @binding(4) var<uniform> sim : Simulation;
+
+@stage(compute) @workgroup_size(1)
+fn main() {
+  var particle = particles.p[0];
+  particle.position[sim.i] = particle.position[sim.i];
+}

test/tint/bug/fxc/matrix_assignment_dynamic_index/local_assign_scalar_x.wgsl

@@ -1,12 +1,12 @@
- struct Uniforms {
-  i : u32,
-  j : u32,
-};
-
-@group(1) @binding(4) var<uniform> uniforms : Uniforms;
-
-@stage(compute) @workgroup_size(1)
-fn main() {
-  var m1 : mat2x4<f32>;
-  m1[uniforms.i][0] = 1.0;
-}
+ struct Uniforms {
+  i : u32,
+  j : u32,
+};
+
+@group(1) @binding(4) var<uniform> uniforms : Uniforms;
+
+@stage(compute) @workgroup_size(1)
+fn main() {
+  var m1 : mat2x4<f32>;
+  m1[uniforms.i][0] = 1.0;
+}

test/tint/bug/fxc/matrix_assignment_dynamic_index/local_assign_scalar_xy.wgsl

@@ -1,12 +1,12 @@
- struct Uniforms {
-  i : u32,
-  j : u32,
-};
-
-@group(1) @binding(4) var<uniform> uniforms : Uniforms;
-
-@stage(compute) @workgroup_size(1)
-fn main() {
-  var m1 : mat2x4<f32>;
-  m1[uniforms.i][uniforms.j] = 1.0;
-}
+ struct Uniforms {
+  i : u32,
+  j : u32,
+};
+
+@group(1) @binding(4) var<uniform> uniforms : Uniforms;
+
+@stage(compute) @workgroup_size(1)
+fn main() {
+  var m1 : mat2x4<f32>;
+  m1[uniforms.i][uniforms.j] = 1.0;
+}

test/tint/bug/fxc/matrix_assignment_dynamic_index/local_assign_scalar_y.wgsl

@@ -1,13 +1,13 @@
- struct Uniforms {
-  i : u32,
-  j : u32,
-};
-
-@group(1) @binding(4) var<uniform> uniforms : Uniforms;
-
-var<private> m1 : mat2x4<f32>;
-
-@stage(compute) @workgroup_size(1)
-fn main() {
-  m1[0][uniforms.j] = 1.0;
-}
+ struct Uniforms {
+  i : u32,
+  j : u32,
+};
+
+@group(1) @binding(4) var<uniform> uniforms : Uniforms;
+
+var<private> m1 : mat2x4<f32>;
+
+@stage(compute) @workgroup_size(1)
+fn main() {
+  m1[0][uniforms.j] = 1.0;
+}

test/tint/bug/fxc/matrix_assignment_dynamic_index/local_assign_vector.wgsl

@@ -1,12 +1,12 @@
- struct Uniforms {
-  i : u32,
-  j : u32,
-};
-
-@group(1) @binding(4) var<uniform> uniforms : Uniforms;
-
-@stage(compute) @workgroup_size(1)
-fn main() {
-  var m1 : mat2x4<f32>;
-  m1[uniforms.i] = vec4<f32>(1.0);
-}
+ struct Uniforms {
+  i : u32,
+  j : u32,
+};
+
+@group(1) @binding(4) var<uniform> uniforms : Uniforms;
+
+@stage(compute) @workgroup_size(1)
+fn main() {
+  var m1 : mat2x4<f32>;
+  m1[uniforms.i] = vec4<f32>(1.0);
+}

test/tint/bug/fxc/matrix_assignment_dynamic_index/module_assign_scalar_x.wgsl

@@ -1,13 +1,13 @@
- struct Uniforms {
-  i : u32,
-  j : u32,
-};
-
-@group(1) @binding(4) var<uniform> uniforms : Uniforms;
-
-var<private> m1 : mat2x4<f32>;
-
-@stage(compute) @workgroup_size(1)
-fn main() {
-  m1[uniforms.i][0] = 1.0;
-}
+ struct Uniforms {
+  i : u32,
+  j : u32,
+};
+
+@group(1) @binding(4) var<uniform> uniforms : Uniforms;
+
+var<private> m1 : mat2x4<f32>;
+
+@stage(compute) @workgroup_size(1)
+fn main() {
+  m1[uniforms.i][0] = 1.0;
+}

test/tint/bug/fxc/matrix_assignment_dynamic_index/module_assign_scalar_xy.wgsl

@@ -1,13 +1,13 @@
- struct Uniforms {
-  i : u32,
-  j : u32,
-};
-
-@group(1) @binding(4) var<uniform> uniforms : Uniforms;
-
-var<private> m1 : mat2x4<f32>;
-
-@stage(compute) @workgroup_size(1)
-fn main() {
-  m1[uniforms.i][uniforms.j] = 1.0;
-}
+ struct Uniforms {
+  i : u32,
+  j : u32,
+};
+
+@group(1) @binding(4) var<uniform> uniforms : Uniforms;
+
+var<private> m1 : mat2x4<f32>;
+
+@stage(compute) @workgroup_size(1)
+fn main() {
+  m1[uniforms.i][uniforms.j] = 1.0;
+}

test/tint/bug/fxc/matrix_assignment_dynamic_index/module_assign_scalar_y.wgsl

@@ -1,13 +1,13 @@
- struct Uniforms {
-  i : u32,
-  j : u32,
-};
-
-@group(1) @binding(4) var<uniform> uniforms : Uniforms;
-
-var<private> m1 : mat2x4<f32>;
-
-@stage(compute) @workgroup_size(1)
-fn main() {
-  m1[0][uniforms.j] = 1.0;
-}
+ struct Uniforms {
+  i : u32,
+  j : u32,
+};
+
+@group(1) @binding(4) var<uniform> uniforms : Uniforms;
+
+var<private> m1 : mat2x4<f32>;
+
+@stage(compute) @workgroup_size(1)
+fn main() {
+  m1[0][uniforms.j] = 1.0;
+}

test/tint/bug/fxc/matrix_assignment_dynamic_index/module_assign_vector.wgsl

@@ -1,13 +1,13 @@
- struct Uniforms {
-  i : u32,
-  j : u32,
-};
-
-@group(1) @binding(4) var<uniform> uniforms : Uniforms;
-
-var<private> m1 : mat2x4<f32>;
-
-@stage(compute) @workgroup_size(1)
-fn main() {
-  m1[uniforms.i] = vec4<f32>(1.0);
-}
+ struct Uniforms {
+  i : u32,
+  j : u32,
+};
+
+@group(1) @binding(4) var<uniform> uniforms : Uniforms;
+
+var<private> m1 : mat2x4<f32>;
+
+@stage(compute) @workgroup_size(1)
+fn main() {
+  m1[uniforms.i] = vec4<f32>(1.0);
+}