Guard more direct-file staging paths

wasm-port/tests/wasm/node/verify_interp_wasm.mjs

@@ -1365,6 +1365,21 @@ verifyExpectedOutput(
 );
 
 const subsFollowMainPath = writeInterpRegressionFile("subs-follow-main", "test.ngc");
+const subsFollowMainNgcFiles = [
+  "test.ngc",
+];
+assert.deepEqual(
+  subsFollowMainNgcFiles,
+  interpRegressionNgcFilesRecursive("subs-follow-main"),
+  "interp subs-follow-main fixture coverage drift",
+);
+assert.deepEqual(
+  [
+    subsFollowMainPath,
+  ],
+  subsFollowMainNgcFiles.map((file) => `/work/interp/subs-follow-main/${file}`),
+  "interp subs-follow-main staging manifest drift",
+);
 verifyExpectedOutput(
   "interp_subs_follow_main_wasm",
   interp.runFile(subsFollowMainPath),
@@ -1382,6 +1397,21 @@ const fractionalLinenumbersPath = writeInterpRegressionFile(
   "fractional-linenumbers",
   "test.ngc",
 );
+const fractionalLinenumbersNgcFiles = [
+  "test.ngc",
+];
+assert.deepEqual(
+  fractionalLinenumbersNgcFiles,
+  interpRegressionNgcFilesRecursive("fractional-linenumbers"),
+  "interp fractional-linenumbers fixture coverage drift",
+);
+assert.deepEqual(
+  [
+    fractionalLinenumbersPath,
+  ],
+  fractionalLinenumbersNgcFiles.map((file) => `/work/interp/fractional-linenumbers/${file}`),
+  "interp fractional-linenumbers staging manifest drift",
+);
 verifyExpectedOutput(
   "interp_fractional_linenumbers_wasm",
   interp.runFile(fractionalLinenumbersPath),
@@ -1397,6 +1427,21 @@ verifyExpectedOutput(
 );
 
 const crazyPathsPath = writeInterpRegressionFile("crazy-paths", "test.ngc");
+const crazyPathsNgcFiles = [
+  "test.ngc",
+];
+assert.deepEqual(
+  crazyPathsNgcFiles,
+  interpRegressionNgcFilesRecursive("crazy-paths"),
+  "interp crazy-paths fixture coverage drift",
+);
+assert.deepEqual(
+  [
+    crazyPathsPath,
+  ],
+  crazyPathsNgcFiles.map((file) => `/work/interp/crazy-paths/${file}`),
+  "interp crazy-paths staging manifest drift",
+);
 verifyExpectedOutput(
   "interp_crazy_paths_wasm",
   interp.runFile(crazyPathsPath),