Fix deprecate syntax

src/ToeplitzMatrices.jl

@@ -589,7 +589,8 @@ Hankel{T}(A::AbstractMatrix) where T = Hankel{T}(A[:,1], A[end,:])
 Hankel(A::AbstractMatrix) = Hankel(A[:,1], A[end,:])
 
 convert(::Type{Array}, A::Hankel) = convert(Matrix, A)
-function convert(::Type{Matrix}, A::Hankel)
+convert(::Type{Matrix}, A::Hankel{T}) where T = convert(Matrix{T}, A)
+function convert(::Type{Matrix{T}}, A::Hankel) where T
     m, n = size(A)
     Af = Matrix{T}(undef, m, n)
     for j = 1:n
@@ -635,8 +636,9 @@ getindex(A::Hankel, i::Integer, j::Integer) = A.T[i,end-j+1]
 
 
 if VERSION ≤ v"0.7"
-    @deprecate Base.full(A::AbstractToeplitz) Matrix(A)
-    @deprecate Base.full(A::Hankel) Matrix(A)
+    import Base: full
+    @deprecate full(A::AbstractToeplitz) Matrix(A)
+    @deprecate full(A::Hankel) Matrix(A)
 end
 
 end #module

test/runtests.jl

@@ -99,9 +99,9 @@ end
 
         Hs = Hankel(0.9.^(ns-1:-1:0), 0.4.^(0:ns-1))
         Hl = Hankel(0.9.^(nl-1:-1:0), 0.4.^(0:nl-1))
-        @test Hs * xs[:,1] ≈ full(Hs) * xs[:,1]
-        @test Hs * xs ≈ full(Hs) * xs
-        @test Hl * xl ≈ full(Hl) * xl
+        @test Hs * xs[:,1] ≈ Matrix(Hs) * xs[:,1]
+        @test Hs * xs ≈ Matrix(Hs) * xs
+        @test Hl * xl ≈ Matrix(Hl) * xl
     end
 
     @testset "Complex square" begin
@@ -127,9 +127,9 @@ end
     @testset "Complex rectangular" begin
         Hs = Hankel(complex(0.9.^(ns-1:-1:0)), complex(0.4.^(0:nl-1)))
         Hl = Hankel(complex(0.9.^(nl-1:-1:0)), complex(0.4.^(0:ns-1)))
-        @test Hs * xl[:,1] ≈ full(Hs) * xl[:,1]
-        @test Hs * xl ≈ full(Hs) * xl
-        @test Hl * xs ≈ full(Hl) * xs
+        @test Hs * xl[:,1] ≈ Matrix(Hs) * xl[:,1]
+        @test Hs * xl ≈ Matrix(Hs) * xl
+        @test Hl * xs ≈ Matrix(Hl) * xs
     end
 
     @testset "Convert" begin