Fix projecto conversion, apply to complex numbers

src/projection.jl

@@ -161,15 +161,23 @@ ProjectTo(::Number) = ProjectTo{Number}()
 
 function ProjectTo(x::Integer)
     @static if int2float_type == "Float16"
-        return ProjectTo{Float16}()
+        return ProjectTo(Float16(x))
     elseif int2float_type == "Float32"
-        return ProjectTo{Float32}()
+        return ProjectTo(Float32(x))
     else # Float64
-        return ProjectTo{Float64}()
+        return ProjectTo(Float64(x))
     end
 end
 
-ProjectTo(x::Complex{<:Integer}) = ProjectTo(float(x))
+function ProjectTo(x::Complex{<:Integer})
+    @static if int2float_type == "Float16"
+        return ProjectTo(Float16(x))
+    elseif int2float_type == "Float32"
+        return ProjectTo(Float32(x))
+    else # Float64
+        return ProjectTo(Float64(x))
+    end
+end
 
 # Preserve low-precision floats as accidental promotion is a common performance bug
 for T in (Float16, Float32, Float64, ComplexF16, ComplexF32, ComplexF64)