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

test/cctest/compiler/test-linkage.cc

Index: test/cctest/compiler/test-linkage.cc
diff --git a/test/cctest/compiler/test-linkage.cc b/test/cctest/compiler/test-linkage.cc
index 6722f59d600042ababd50964804ef60ec217d644..311b510e03b49f19cb33f50a726922e81a199ceb 100644
--- a/test/cctest/compiler/test-linkage.cc
+++ b/test/cctest/compiler/test-linkage.cc
@@ -44,7 +44,8 @@ TEST(TestLinkageCreate) {
   Handle<JSFunction> function = Compile("a + b");
   ParseInfo parse_info(handles.main_zone(), function);
   CompilationInfo info(&parse_info);
-  CallDescriptor* descriptor = Linkage::ComputeIncoming(info.zone(), &info);
+  const CallDescriptor* descriptor =
+      Linkage::ComputeIncoming(info.zone(), &info);
   CHECK(descriptor);
 }
 
@@ -60,7 +61,8 @@ TEST(TestLinkageJSFunctionIncoming) {
             *v8::Local<v8::Function>::Cast(CompileRun(sources[i]))));
     ParseInfo parse_info(handles.main_zone(), function);
     CompilationInfo info(&parse_info);
-    CallDescriptor* descriptor = Linkage::ComputeIncoming(info.zone(), &info);
+    const CallDescriptor* descriptor =
+        Linkage::ComputeIncoming(info.zone(), &info);
     CHECK(descriptor);
 
     CHECK_EQ(1 + i, static_cast<int>(descriptor->JSParameterCount()));