[wasm] check that there is at most 1 table

test/mjsunit/wasm/wasm-module-builder.js

Index: test/mjsunit/wasm/wasm-module-builder.js
diff --git a/test/mjsunit/wasm/wasm-module-builder.js b/test/mjsunit/wasm/wasm-module-builder.js
index d7bf9a67c881c9a677711ba98a930e112712beae..5fade5bc8dbda288463539b565bf9342211e299a 100644
--- a/test/mjsunit/wasm/wasm-module-builder.js
+++ b/test/mjsunit/wasm/wasm-module-builder.js
@@ -227,12 +227,12 @@ class WasmModuleBuilder {
     this.exports.push({name: name, kind: kExternalMemory, index: 0});
   }
 
-  addFunctionTableInit(base, is_global, array) {
+  addFunctionTableInit(base, is_global, array, is_import = false) {
     this.function_table_inits.push({base: base, is_global: is_global,
                                     array: array});
     if (!is_global) {
       var length = base + array.length;
-      if (length > this.function_table_length) {
+      if (length > this.function_table_length && !is_import) {
         this.function_table_length = length;
       }
     }