[Compiler] fix stdout/stderr to point to Core (#59672)

Followup to #58425
Fixes #56645

Author: vtjnash

Compiler/src/Compiler.jl

@@ -41,9 +41,8 @@ using Core: ABIOverride, Builtin, CodeInstance, IntrinsicFunction, MethodInstanc
     MethodTable, MethodCache, PartialOpaque, SimpleVector, TypeofVararg,
     _apply_iterate, apply_type, compilerbarrier, donotdelete, memoryref_isassigned,
     memoryrefget, memoryrefnew, memoryrefoffset, memoryrefset!, print, println, show, svec,
-    typename, unsafe_write, write
+    typename, unsafe_write, write, stdout, stderr
 
-using Base
 using Base: @_foldable_meta, @_gc_preserve_begin, @_gc_preserve_end, @nospecializeinfer,
     PARTITION_KIND_GLOBAL, PARTITION_KIND_UNDEF_CONST, PARTITION_KIND_BACKDATED_CONST, PARTITION_KIND_DECLARED,
     PARTITION_FLAG_DEPWARN,
@@ -68,8 +67,10 @@ using Base: @_foldable_meta, @_gc_preserve_begin, @_gc_preserve_end, @nospeciali
     partialstruct_init_undefs, fieldcount_noerror, _eval_import, _eval_using,
     get_ci_mi, get_methodtable, morespecific, specializations, has_image_globalref,
     PARTITION_MASK_KIND, PARTITION_KIND_GUARD, PARTITION_FLAG_EXPORTED, PARTITION_FLAG_DEPRECATED,
-    BINDING_FLAG_ANY_IMPLICIT_EDGES, is_some_implicit, IteratorSize, SizeUnknown, get_require_world, JLOptions
+    BINDING_FLAG_ANY_IMPLICIT_EDGES, is_some_implicit, IteratorSize, SizeUnknown, get_require_world, JLOptions,
+    devnull, devnull as stdin
 
+using Base
 using Base.Order
 
 import Base: ==, _topmod, append!, convert, copy, copy!, findall, first, get, get!,

Compiler/test/validation.jl

@@ -4,6 +4,15 @@ using Test, Core.IR
 
 include("setup_Compiler.jl")
 
+@testset "stdio validation" begin
+    for s in (:stdout, :stderr, :print, :println, :write)
+        @test getglobal(Compiler, s) === getglobal(Core, s)
+        @test isconst(Compiler, s)
+    end
+    @test Compiler.stdin === devnull
+    @test isconst(Compiler, :stdin)
+end
+
 function f22938(a, b, x...)
     nothing
     nothing