Guard small single-file staging

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

@@ -2068,13 +2068,7 @@ assert.deepEqual(
   interpRegressionNgcFilesRecursive("g33.1"),
   "interp g33.1 fixture coverage drift",
 );
-assert.deepEqual(
-  [
-    g33_1Path,
-  ],
-  g33_1NgcFiles.map((file) => `/work/interp/g33.1/${file}`),
-  "interp g33.1 staging manifest drift",
-);
+assertInterpRegressionFileStaging("g33.1", "g33.1.ngc", g33_1Path);
 verifyExpectedOutput(
   "interp_g33_1_wasm",
   interp.runFile(g33_1Path),
@@ -2170,13 +2164,7 @@ assert.deepEqual(
   interpRegressionNgcFilesRecursive("g6164"),
   "interp g6164 fixture coverage drift",
 );
-assert.deepEqual(
-  [
-    g6164Path,
-  ],
-  g6164NgcFiles.map((file) => `/work/interp/g6164/${file}`),
-  "interp g6164 staging manifest drift",
-);
+assertInterpRegressionFileStaging("g6164", "test.ngc", g6164Path);
 verifyExpectedOutput(
   "interp_g6164_wasm",
   interp.runFile(g6164Path),
@@ -3530,12 +3518,10 @@ assert.deepEqual(
   interpRegressionNgcFilesRecursive("g52"),
   "interp g52 fixture coverage drift",
 );
-assert.deepEqual(
-  [
-    g52G92InteractionPath,
-  ],
-  g52RegressionFiles.map((file) => `/work/interp/g52/${file}`),
-  "interp g52 staging manifest drift",
+assertInterpRegressionFileStaging(
+  "g52/g52-g92-interaction",
+  "g52-g92-interaction.ngc",
+  g52G92InteractionPath,
 );
 const g52G92InteractionRun = runWithCapturedPrints(() =>
   interp.runFile(g52G92InteractionPath),