Apply suggestions from code review

Author: dkarrasch

src/diagonal.jl

@@ -335,14 +335,14 @@ function mul(A::AdjOrTransAbsMat, D::Diagonal)
     copy(adj(adj(D) * adj(A)))
 end
 function mul(A::AdjOrTransAbsMat{<:Number, <:StridedMatrix}, D::Diagonal{<:Number})
-    @invoke *(A::AbstractMatrix, D::AbstractMatrix)
+    @invoke mul(A::AbstractMatrix, D::AbstractMatrix)
 end
 function mul(D::Diagonal, A::AdjOrTransAbsMat)
     adj = wrapperop(A)
     copy(adj(adj(A) * adj(D)))
 end
 function mul(D::Diagonal{<:Number}, A::AdjOrTransAbsMat{<:Number, <:StridedMatrix})
-    @invoke *(D::AbstractMatrix, A::AbstractMatrix)
+    @invoke mul(D::AbstractMatrix, A::AbstractMatrix)
 end
 
 function rmul!(A::AbstractMatrix, D::Diagonal)