inference: Make test indepdent of the Complex method table (#59105)

Author: Keno

Compiler/test/inference.jl

@@ -3549,8 +3549,14 @@ f31974(n::Int) = f31974(1:n)
 # call cycles.
 @test code_typed(f31974, Tuple{Int}) !== nothing
 
-f_overly_abstract_complex() = Complex(Ref{Number}(1)[])
-@test Base.return_types(f_overly_abstract_complex, Tuple{}) == [Complex]
+# Issue #33472
+struct WrapperWithUnionall33472{T<:Real}
+    x::T
+end
+
+f_overly_abstract33472() = WrapperWithUnionall33472(Base.inferencebarrier(1)::Number)
+# Check that this doesn't infer as `WrapperWithUnionall33472{T<:Number}`.
+@test Base.return_types(f_overly_abstract33472, Tuple{}) == [WrapperWithUnionall33472]
 
 # Issue 26724
 const IntRange = AbstractUnitRange{<:Integer}