[wasm] asm.js - Remove Wasm.instantiateModuleFromAsm, use asm.js directly.

src/asmjs/asm-js.cc

Index: src/asmjs/asm-js.cc
diff --git a/src/asmjs/asm-js.cc b/src/asmjs/asm-js.cc
index c38c0537358b1f5f38606c05af9efcc568fedb2a..cbd69644a5e49ae81b4051f6b29cdce2d74c77ba 100644
--- a/src/asmjs/asm-js.cc
+++ b/src/asmjs/asm-js.cc
@@ -67,6 +67,9 @@ bool IsStdlibMemberValid(i::Isolate* isolate, Handle<JSReceiver> stdlib,
       return true;
     }
     case wasm::AsmTyper::StandardMember::kNaN: {
+      if (stdlib.is_null()) {
+        return false;
+      }
       i::Handle<i::Name> name(isolate->factory()->InternalizeOneByteString(
           STATIC_CHAR_VECTOR("NaN")));
       i::MaybeHandle<i::Object> maybe_value =
@@ -212,11 +215,8 @@ MaybeHandle<Object> AsmJs::InstantiateAsmWasm(i::Isolate* isolate,
       isolate, init, undefined, foreign_globals->length(), foreign_args_array);
   delete[] foreign_args_array;
 
-  if (retval.is_null()) {
-    thrower.Error(
-        "WASM.instantiateModuleFromAsm(): foreign init function failed");
-    return MaybeHandle<Object>();
-  }
+  DCHECK(!retval.is_null());
+
   return maybe_module_object;
 }