Added test for S_SEPCODE entries

.github/workflows/build-and-test.yml

@@ -61,3 +61,24 @@ jobs:
           curl -Lo cvdump.exe https://raw.githubusercontent.com/microsoft/microsoft-pdb/HEAD/cvdump/cvdump.exe &&
           ./cvdump.exe world.pdb >world.cvdump &&
           grep '^S_PUB32: .*, Flags: 00000000, main$' world.cvdump
+      - name: verify split functions
+        shell: bash
+        run: |
+          set -x &&
+          cat >split.c <<-\EOF &&
+          __attribute__((cold,noinline)) void cold() { volatile int i=0; }
+          __attribute__((dllexport)) void split_func(int i)
+          {
+            if (i)
+              cold();
+          }
+          EOF
+
+          gcc -g -O2 -shared -o split-dwarf.dll split.c &&
+          bin/${{env.BUILD_CONFIGURATION}}*/cv2pdb.exe split-dwarf.dll split-cv.dll &&
+
+          ls -l split-dwarf* split-cv* &&
+
+          curl -Lo cvdump.exe https://raw.githubusercontent.com/microsoft/microsoft-pdb/HEAD/cvdump/cvdump.exe &&
+          ./cvdump.exe split-cv.pdb > split-cv.dump &&
+          awk '$2 == "S_GPROC32:" && $NF == "split_func" { scope=gensub(/,/,"",1,$3); } $2 == "S_SEPCODE:" { getline; if ($4 == scope) found=1; } END {exit !found; }' split-cv.dump