[wasm] Implement Table#set and Table#grow

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 df6007b67a73f9c55ddcf6f08af2f803f1cf0a69..7d2908591283e0e6726b61ba89ea7551fc6ea070 100644
--- a/test/mjsunit/wasm/wasm-module-builder.js
+++ b/test/mjsunit/wasm/wasm-module-builder.js
@@ -83,10 +83,11 @@ class WasmFunctionBuilder {
     this.module = module;
     this.name = name;
     this.type_index = type_index;
+    this.body = [];
   }
 
   exportAs(name) {
-    this.module.exports.push({name: name, kind: kExternalFunction, index: this.index});
+    this.module.addExport(name, this.index);
     return this;
   }
 
@@ -199,6 +200,11 @@ class WasmModuleBuilder {
     this.imports.push(o);
   }
 
+  addExport(name, index) {
+    this.exports.push({name: name, kind: kExternalFunction, index: index});
+    return this;
+  }
+
   addDataSegment(addr, data, is_global = false) {
     this.segments.push({addr: addr, data: data, is_global: is_global});
     return this.segments.length - 1;