[wasm][fuzzer] Output table bounds and initializers

For indirect calls, we need to set up the tables correctly. This CL
adds this to the test case generation logic.

R=ahaas@chromium.org

Change-Id: I18a5a8e0659c46daec00d46d02fe50d5d94638d6
Reviewed-on: https://chromium-review.googlesource.com/c/1349985Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57838}

test/fuzzer/wasm-fuzzer-common.cc

@@ -200,6 +200,31 @@ void GenerateTestCase(Isolate* isolate, ModuleWireBytes wire_bytes,
 
   Zone tmp_zone(isolate->allocator(), ZONE_NAME);
 
+  // There currently cannot be more than one table.
+  DCHECK_GE(1, module->tables.size());
+  for (const WasmTable& table : module->tables) {
+    os << "  builder.setTableBounds(" << table.initial_size << ", ";
+    if (table.has_maximum_size) {
+      os << table.maximum_size << ");\n";
+    } else {
+      os << "undefined);\n";
+    }
+  }
+  for (const WasmTableInit& table_init : module->table_inits) {
+    os << "  builder.addElementSegment(";
+    switch (table_init.offset.kind) {
+      case WasmInitExpr::kGlobalIndex:
+        os << table_init.offset.val.global_index << ", true";
+        break;
+      case WasmInitExpr::kI32Const:
+        os << table_init.offset.val.i32_const << ", false";
+        break;
+      default:
+        UNREACHABLE();
+    }
+    os << ", " << PrintCollection(table_init.entries) << ");\n";
+  }
+
   for (const WasmFunction& func : module->functions) {
     Vector<const uint8_t> func_code = wire_bytes.GetFunctionBytes(&func);
     os << "  // Generate function " << (func.func_index + 1) << " (out of "