[wasm][asm.js] Asm.js -> wasm custom parser.

src/wasm/wasm-module.cc

Index: src/wasm/wasm-module.cc
diff --git a/src/wasm/wasm-module.cc b/src/wasm/wasm-module.cc
index dbacfb85dc1cd9446ff1b0075eee9c1d9aa45e27..fd5fe2622c46cb48a8ade7de9be15e28420468d2 100644
--- a/src/wasm/wasm-module.cc
+++ b/src/wasm/wasm-module.cc
@@ -1669,6 +1669,13 @@ class InstantiationHelper {
                             module_name, import_name);
             return -1;
           }
+          if (FLAG_fast_validate_asm) {
+            if (module_->globals[import.index].type == kWasmI32) {
+              value = Object::ToInt32(isolate_, value).ToHandleChecked();
+            } else {
+              value = Object::ToNumber(value).ToHandleChecked();
+            }
+          }
           if (!value->IsNumber()) {
             ReportLinkError("global import must be a number", index,
                             module_name, import_name);