Demonstrate gpu inference fix

test/Fields/inference_repro.jl

@@ -4,15 +4,25 @@ import ClimaComms
 ClimaComms.@import_required_backends
 import ClimaCore: Fields, Domains, Geometry, Meshes, Spaces
 
+macro ConstantValue(T)
+    quote
+        Base.broadcastable(x::$T) = x
+        Base.axes(x::$T) = ()
+        Base.getindex(x::$T, i...) = x
+        Base.getindex(x::$T, i) = x
+        Base.ndims(x::Type{<:$T}) = 0
+    end
+end
+
 struct LandParameters{FT}
     ρ_cloud_ice::FT
 end
-Base.broadcastable(x::LandParameters) = tuple(x)
+@ConstantValue LandParameters
 
 struct vanGenuchten{FT}
     α::FT
 end
-Base.broadcastable(x::vanGenuchten) = tuple(x)
+@ConstantValue vanGenuchten
 
 function phase_change_source(
     θ_l::FT,
@@ -64,16 +74,5 @@ end
 
 using Test
 @testset "GPU inference failure" begin
-    if ClimaComms.device() isa ClimaComms.CUDADevice
-        @test_broken try
-            main(Float64)
-            true
-        catch e
-            @assert occursin("GPUCompiler.InvalidIRError", string(e))
-            @assert occursin("dynamic function invocation", e.errors[1][1])
-            false
-        end
-    else
-        main(Float64)
-    end
+    main(Float64)
 end