Update DebugInfo/FortranArray test after DWARF emission fix (#2054)

Update test for llvm-project commit llvm/llvm-project@d80fdc6fc1a6

Original commit:
KhronosGroup/SPIRV-LLVM-Translator@b1782bf

Author: vmaksimo

llvm-spirv/test/DebugInfo/NonSemantic/Shader200/FortranArray.ll

@@ -6,9 +6,6 @@
 ; RUN: llvm-spirv -r -emit-opaque-pointers %t.spv -o %t.rev.bc
 ; RUN: llvm-dis %t.rev.bc -o - | FileCheck %s --check-prefix=CHECK-LLVM
 
-; TODO: rewrite test after llvm DI metadata changes.
-; XFAIL: *
-
 ; CHECK-SPIRV: [[#CompUnit:]] [[#]] DebugCompilationUnit
 ; CHECK-SPIRV: [[#None:]] [[#]] DebugInfoNone
 ; CHECK-SPIRV: [[#EntryFunc:]] [[#]] DebugFunction
@@ -27,6 +24,10 @@ source_filename = "llvm-link"
 target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-n8:16:32:64"
 target triple = "spir64"
 
+define void @MAIN__() local_unnamed_addr !dbg !24 {
+    ret void
+}
+
 !llvm.module.flags = !{!5, !6, !7, !8}
 !llvm.dbg.cu = !{!9}