Fix element type of -Symmetric(A) for e.g. Bool or JuMP.VariableRef, fixes #32374 (#32375)

(cherry picked from commit d958419)

Author: blegat

stdlib/LinearAlgebra/src/symmetric.jl

@@ -390,8 +390,8 @@ function triu(A::Symmetric, k::Integer=0)
     end
 end
 
-(-)(A::Symmetric{Tv,S}) where {Tv,S} = Symmetric{Tv,S}(-A.data, A.uplo)
-(-)(A::Hermitian{Tv,S}) where {Tv,S} = Hermitian{Tv,S}(-A.data, A.uplo)
+(-)(A::Symmetric) = Symmetric(-A.data, sym_uplo(A.uplo))
+(-)(A::Hermitian) = Hermitian(-A.data, sym_uplo(A.uplo))
 
 ## Matvec
 mul!(y::StridedVector{T}, A::Symmetric{T,<:StridedMatrix}, x::StridedVector{T}) where {T<:BlasFloat} =

stdlib/LinearAlgebra/test/symmetric.jl

@@ -88,6 +88,8 @@ end
             @testset "Unary minus for Symmetric/Hermitian matrices" begin
                 @test (-Symmetric(asym))::typeof(Symmetric(asym)) == -asym
                 @test (-Hermitian(aherm))::typeof(Hermitian(aherm)) == -aherm
+                @test (-Symmetric([true true; false false]))::Symmetric{Int,Matrix{Int}} == [-1 -1; -1 0]
+                @test (-Hermitian([true false; true false]))::Hermitian{Int,Matrix{Int}} == [-1 0; 0 0]
             end
 
             @testset "getindex and unsafe_getindex" begin