Fix out-of-place test plans to support non complex-float input

Author: gaurav-arya

test/TestPlans.jl

@@ -104,8 +104,8 @@ end
 Base.:*(p::TestPlan{T,N,0}, x::AbstractArray) where {T,N} = mul!(similar(x, complex(float(eltype(x)))), p, x)
 Base.:*(p::InverseTestPlan{T,N,0}, x::AbstractArray) where {T,N} = mul!(similar(x, complex(float(eltype(x)))), p, x)
 
-Base.:*(p::TestPlan{T,N,1}, x::AbstractArray) where {T,N} = copyto!(x, dft!(similar(x), x, p.region, -1))
-Base.:*(p::InverseTestPlan{T,N,1}, x::AbstractArray) where {T,N} = copyto!(x, dft!(similar(x), x, p.region, 1))
+Base.:*(p::TestPlan{T,N,1}, x::AbstractArray) where {T,N} = dft!(similar(x, complex(float(eltype(x)))), x, p.region, -1)
+Base.:*(p::InverseTestPlan{T,N,1}, x::AbstractArray) where {T,N} = dft!(similar(x, complex(float(eltype(x)))), x, p.region, 1)
 
 mutable struct TestRPlan{T,N} <: Plan{T}
     region