fixup!: #56756 (#56758)

We need to quote it, otherwise it would result in `UnderVarError`.

Author: aviatesk

Compiler/src/Compiler.jl

@@ -183,7 +183,7 @@ include("opaque_closure.jl")
 
 macro __SOURCE_FILE__()
     __source__.file === nothing && return nothing
-    return __source__.file::Symbol
+    return QuoteNode(__source__.file::Symbol)
 end
 
 module IRShow end