[ir][msl] Generate expectation files.

Add SKIP expectation files for the MSL IR printer.

Bug: tint:1967
Change-Id: Ia0597244328d580fef391a094c46f131751bc01f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/162040
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: dan sinclair <dsinclair@chromium.org>
diff --git a/test/tint/builtins/gen/literal/acos/dfc915.wgsl.expected.ir.msl b/test/tint/builtins/gen/literal/acos/dfc915.wgsl.expected.ir.msl
new file mode 100644
index 0000000..b1efb0b
--- /dev/null
+++ b/test/tint/builtins/gen/literal/acos/dfc915.wgsl.expected.ir.msl
@@ -0,0 +1,40 @@
+SKIP: FAILED
+
+<dawn>/src/tint/lang/msl/writer/printer/printer.cc:355 internal compiler error: %b1 = block {  # root
+  %prevent_dce:ptr<storage, vec2<f32>, read_write> = var @binding_point(2, 0)
+}
+
+%acos_dfc915 = func():void -> %b2 {
+  %b2 = block {
+    %res:ptr<function, vec2<f32>, read_write> = var, vec2<f32>(0.25f)
+    %4:vec2<f32> = load %res
+    store %prevent_dce, %4
+    ret
+  }
+}
+%vertex_main = @vertex func():vec4<f32> [@position] -> %b3 {
+  %b3 = block {
+    %6:void = call %acos_dfc915
+    ret vec4<f32>(0.0f)
+  }
+}
+%fragment_main = @fragment func():void -> %b4 {
+  %b4 = block {
+    %8:void = call %acos_dfc915
+    ret
+  }
+}
+%compute_main = @compute @workgroup_size(1, 1, 1) func():void -> %b5 {
+  %b5 = block {
+    %10:void = call %acos_dfc915
+    ret
+  }
+}
+
+unhandled variable address space
+********************************************************************
+*  The tint shader compiler has encountered an unexpected error.   *
+*                                                                  *
+*  Please help us fix this issue by submitting a bug report at     *
+*  crbug.com/tint with the source program that triggered the bug.  *
+********************************************************************