Add a test.

test/reflection.jl

@@ -870,3 +870,15 @@ function _test_at_locals2(a::Any, ::Any)
     @test @locals() == Dict{Symbol,Any}(:x=>2,:a=>a)
 end
 _test_at_locals2(1,1)
+
+@testset "issue #31687" begin
+    import InteractiveUtils._dump_function
+
+    @noinline f31687_child(i) = f31687_nonexistent(i)
+    f31687_parent() = f31687_child(0)
+    params = Base.CodegenParams(cached=false)
+    _dump_function(f31687_parent, Tuple{},
+                   #=native=#false, #=wrapper=#false, #=strip=#false,
+                   #=dump_module=#true, #=syntax=#:att, #=optimize=#false, :none,
+                   params)
+end