lowering regression on nightly causing spurious syntax errors

[nsajko]

Reproducer:

using Test
let
    try
        @test_logs (:info, "D") P(x)
    finally
        @test_logs (:info, "D") P(before)
    end
    before = 7
end

Example:

julia> using Test

julia> let
           try
               @test_logs (:info, "D") P(x)
           finally
               @test_logs (:info, "D") P(before)
           end
           before = 7
       end
ERROR: syntax: invalid syntax (gotoifnot (ssavalue 96) 0)
Stacktrace:
 [1] top-level scope
   @ REPL[3]:1

julia> versioninfo()
Julia Version 1.12.0-DEV.1462
Commit 6de6b46b7e5 (2024-10-22 16:07 UTC)
Build Info:
  Official https://julialang.org release
Platform Info:
  OS: Linux (x86_64-linux-gnu)
  CPU: 8 × AMD Ryzen 3 5300U with Radeon Graphics
  WORD_SIZE: 64
  LLVM: libLLVM-18.1.7 (ORCJIT, znver2)
Threads: 1 default, 0 interactive, 1 GC (on 8 virtual cores)

Bisected to #55876.

[nsajko]

Reduced to:

let
    try
        3 
    finally
        try
            f() do
                x   
            end
        catch
            x   
        end
    end
    x = 7 
end