less typed return of fit (#478)

* less typed return of fit

* version bump

Author: jverzani

Project.toml

@@ -2,7 +2,7 @@ name = "Polynomials"
 uuid = "f27b6e38-b328-58d1-80ce-0feddd5e7a45"
 license = "MIT"
 author = "JuliaMath"
-version = "3.2.6"
+version = "3.2.7"
 
 [deps]
 ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"

src/common.jl

@@ -154,13 +154,13 @@ function _fit(P::Type{<:AbstractPolynomial},
     end
     R = float(T)
     if isa(deg, Integer)
-        return P{R, Symbol(var)}(R.(coeffs))
+        return P(R.(coeffs), var)
     else
         cs = zeros(T, 1 + maximum(deg))
         for (i,aᵢ) ∈ zip(deg, coeffs)
             cs[1 + i] = aᵢ
         end
-        return P{R, Symbol(var)}(cs)
+        return P(cs, var)
     end