[wasm] Add more thorough tests for WASM->JS and JS->WASM parameters.

src/compiler/linkage.h

Index: src/compiler/linkage.h
diff --git a/src/compiler/linkage.h b/src/compiler/linkage.h
index 252f0443213e522875697d8013649d58a02977a0..33da7a4c2b6b4dfcbffb2f34eeb7ce83ec594e64 100644
--- a/src/compiler/linkage.h
+++ b/src/compiler/linkage.h
@@ -153,9 +153,10 @@ class CallDescriptor final : public ZoneObject {
     kHasLocalCatchHandler = 1u << 4,
     kSupportsTailCalls = 1u << 5,
     kCanUseRoots = 1u << 6,
-    // Indicates that the native stack should be used for a code object. This
-    // information is important for native calls on arm64.
+    // (arm64 only) native stack should be used for arguments.
     kUseNativeStack = 1u << 7,
+    // (arm64 only) call instruction has to restore JSSP.
+    kRestoreJSSP = 1u << 8,
     kPatchableCallSiteWithNop = kPatchableCallSite | kNeedsNopAfterCall
   };
   typedef base::Flags<Flag> Flags;