fix ambiguities

Author: ChrisRackauckas

src/factorization.jl

@@ -10,10 +10,16 @@ end
     function _ldiv!(x::AbstractVector, A::SparseArrays.SPQR.QRSparse, b::AbstractVector)
         x .= A \ b
     end
+    function _ldiv!(x::Vector, A::SparseArrays.SPQR.QRSparse, b::Vector)
+        x .= A \ b
+    end
 else
     function _ldiv!(x::AbstractVector, A::SuiteSparse.SPQR.QRSparse, b::AbstractVector)
         x .= A \ b
     end
+    function _ldiv!(x::Vector, A::SuiteSparse.SPQR.QRSparse, b::Vector)
+        x .= A \ b
+    end
 end
 
 function SciMLBase.solve(cache::LinearCache, alg::AbstractFactorization; kwargs...)