[wasm] Fix and tighten memory validation

test/mjsunit/wasm/memory-size.js

Index: test/mjsunit/wasm/memory-size.js
diff --git a/test/mjsunit/wasm/memory-size.js b/test/mjsunit/wasm/memory-size.js
index bd747176a8de56319f1d612c0983a5a338d70c8b..0c96efb798a196f5cc8cf3291d68b27aed1d7b19 100644
--- a/test/mjsunit/wasm/memory-size.js
+++ b/test/mjsunit/wasm/memory-size.js
@@ -10,6 +10,7 @@ load("test/mjsunit/wasm/wasm-module-builder.js");
 (function testMemorySizeZero() {
   print("testMemorySizeZero()");
   var builder = new WasmModuleBuilder();
+  builder.addMemory(0, 0, false);
   builder.addFunction("memory_size", kSig_i_v)
          .addBody([kExprMemorySize, kMemoryZero])
          .exportFunc();