fixup! refactor: make LabelledArrays an extension

Author: SebastianM-C

ext/MTKLabelledArraysExt.jl

@@ -6,4 +6,13 @@ function ModelingToolkit.define_vars(u::Union{SLArray, LArray}, t)
     [_defvar(x)(t) for x in LabelledArrays.symnames(typeof(u))]
 end
 
+function ModelingToolkit.define_params(p::Union{SLArray, LArray}, names = nothing)
+    if names === nothing
+        [toparam(variable(x)) for x in LabelledArrays.symnames(typeof(p))]
+    else
+        varnames_length_check(p, names)
+        [toparam(variable(names[i])) for i in eachindex(p)]
+    end
+end
+
 end

src/systems/diffeqs/modelingtoolkitize.jl

@@ -180,15 +180,6 @@ function define_params(p::AbstractDict, names = nothing)
     end
 end
 
-function define_params(p::Union{SLArray, LArray}, names = nothing)
-    if names === nothing
-        [toparam(variable(x)) for x in LabelledArrays.symnames(typeof(p))]
-    else
-        varnames_length_check(p, names)
-        [toparam(variable(names[i])) for i in eachindex(p)]
-    end
-end
-
 function define_params(p::Tuple, names = nothing)
     if names === nothing
         tuple((toparam(variable(:α, i)) for i in eachindex(p))...)