Guard browser OPFS custom session load options

wasm-port/tests/browser/interp_smoke.html

@@ -4614,6 +4614,22 @@
       ].join("\n");
     }
 
+    function opfsCustomSessionLoadOptions(
+      iniSdk,
+      iniWasmPath,
+      parameterWasmPath,
+      toolTableWasmPath,
+      filenameOverrides = {},
+    ) {
+      return {
+        iniSdk,
+        iniWasmPath,
+        ...filenameOverrides,
+        parameterWasmPath,
+        toolTableWasmPath,
+      };
+    }
+
     async function verifyOpfsSavedText(label, loadActualText, expectedLines) {
       verifyExpectedOutput(label, await loadActualText(), expectedLines.join("\n"));
     }
@@ -9540,12 +9556,12 @@
       const loadedIniFileSession = await loadMachineSessionFromOpfs(
         interp,
         iniFileMachineId,
-        {
-          iniSdk: ini,
-          iniWasmPath: iniFileIniWasmPath,
-          parameterWasmPath: iniFileParameterWasmPath,
-          toolTableWasmPath: iniFileToolTableWasmPath,
-        },
+        opfsCustomSessionLoadOptions(
+          ini,
+          iniFileIniWasmPath,
+          iniFileParameterWasmPath,
+          iniFileToolTableWasmPath,
+        ),
       );
       assertOpfsSessionStaging(
         "opfs_load_ini_named_session_staging",
@@ -9668,14 +9684,16 @@
       const loadedIniOverrideSession = await loadMachineSessionFromOpfs(
         interp,
         iniOverrideMachineId,
-        {
-          iniSdk: ini,
-          iniWasmPath: iniOverrideIniWasmPath,
-          parameterFilename: explicitParameterFilename,
-          parameterWasmPath: explicitParameterWasmPath,
-          toolTableFilename: explicitToolTableFilename,
-          toolTableWasmPath: explicitToolTableWasmPath,
-        },
+        opfsCustomSessionLoadOptions(
+          ini,
+          iniOverrideIniWasmPath,
+          explicitParameterWasmPath,
+          explicitToolTableWasmPath,
+          {
+            parameterFilename: explicitParameterFilename,
+            toolTableFilename: explicitToolTableFilename,
+          },
+        ),
       );
       assertOpfsSessionStaging(
         "opfs_load_explicit_session_staging",