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/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);
+}