fix: fix Arr multiplication ambiguity

Author: AayushSabharwal

src/array-lib.jl

@@ -74,7 +74,9 @@ const PolyadicT = Union{AbstractArray{<:Number}, Number}
 function *(x::Arr, args::PolyadicT...)
     return *(unwrap(x), args...)
 end
-
+function *(x::Arr, y::Number, args::PolyadicT...)
+    return *(unwrap(x), unwrap(y), args...)
+end
 function *(a::PolyadicT, b::Arr, bs::PolyadicT...)
     return *(a, unwrap(b), bs...)
 end

test/arrays.jl

@@ -445,3 +445,8 @@ end
     @test isequal(SymbolicUtils.sorted_arguments(sym), [unwrap(x), unwrap(y)])
     @test operation(sym) === +
 end
+
+@testset "matmul ambiguity" begin
+    @variables x[1:3] y
+    @test_nowarn x * y
+end