[wasm] WasmRunner can run tests with I64 parameters and return value.

src/compiler/linkage.cc

Index: src/compiler/linkage.cc
diff --git a/src/compiler/linkage.cc b/src/compiler/linkage.cc
index d4a366563a1180a137bf688f7ad823a0d1cb660c..d01bbf8fed03e9fb84985fda811c9b75c9fd2617 100644
--- a/src/compiler/linkage.cc
+++ b/src/compiler/linkage.cc
@@ -115,8 +115,8 @@ bool CallDescriptor::CanTailCall(const Node* node,
   return HasSameReturnLocationsAs(OpParameter<CallDescriptor const*>(node));
 }
 
-
-CallDescriptor* Linkage::ComputeIncoming(Zone* zone, CompilationInfo* info) {
+const CallDescriptor* Linkage::ComputeIncoming(Zone* zone,
+                                               CompilationInfo* info) {
   DCHECK(!info->IsStub());
   if (info->has_literal()) {
     // If we already have the function literal, use the number of parameters