[wasm] Enforce limits for maximums for many WebAssembly binary entities.

src/wasm/ast-decoder.cc

Index: src/wasm/ast-decoder.cc
diff --git a/src/wasm/ast-decoder.cc b/src/wasm/ast-decoder.cc
index bf5eba655689d10965876c4d7a1dceb07b6a7c4e..320b086a8c8865dc4d9d468689bd661e4a89ffc7 100644
--- a/src/wasm/ast-decoder.cc
+++ b/src/wasm/ast-decoder.cc
@@ -590,7 +590,7 @@ class WasmFullDecoder : public WasmDecoder {
     TRACE("local decls count: %u\n", entries);
     while (entries-- > 0 && pc_ < limit_) {
       uint32_t count = consume_u32v("local count");
-      if (count > kMaxNumWasmLocals) {
+      if ((count + local_type_vec_.size()) > kMaxNumWasmLocals) {
         error(pc_ - 1, "local count too large");
         return;
       }