[wasm] Wasm functions with int64 parameters can now be called from JS.

test/mjsunit/wasm/calls.js

Index: test/mjsunit/wasm/calls.js
diff --git a/test/mjsunit/wasm/calls.js b/test/mjsunit/wasm/calls.js
index 11cc92a8ec37befc0200edc63e38215736a87273..9f65ab95a98aca890e0919ed66d815208b6e33a4 100644
--- a/test/mjsunit/wasm/calls.js
+++ b/test/mjsunit/wasm/calls.js
@@ -41,6 +41,28 @@ function assertFunction(module, func) {
   return exp;
 }
 
+(function I64SubTest() {
+
+  var builder = new WasmModuleBuilder();
+
+  builder.addMemory(1, 1, true);
+  builder.addFunction("sub", [kAstI64, kAstI64, kAstI64])
+    .addBody([
+      kExprI64Sub,                  // --
+      kExprGetLocal, 0,             // --
+      kExprGetLocal, 1])            // --
+    .exportFunc()
+
+  var module = builder.instantiate();
+  assertModule(module, kPageSize);
+
+  // Check the properties of the sub function.
+  var sub = assertFunction(module, "sub");
+  assertEquals(-55, sub(33, 88));
+  assertEquals(-55555, sub(33333, 88888));
+  assertEquals(-5555555, sub(3333333, 8888888));
+})();
+
 (function SubTest() {
 
   var builder = new WasmModuleBuilder();