vkd3d-shader: Check for missing semantics on entry function parameters.

Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Matteo Bruni <mbruni@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

tests/hlsl-invalid.shader_test

@@ -108,6 +108,19 @@ float4 main(out float4 o : sv_target)
     return 0;
 }
 
+[pixel shader fail]
+float4 main(out float4 o) : sv_target
+{
+    o = 1;
+    return 0;
+}
+
+[pixel shader fail]
+float4 main(in float4 i) : sv_target
+{
+    return 0;
+}
+
 [pixel shader fail]
 struct {float4 a;};