[wasm] Fix br_table in the wasm interpreter to use varuint32.

test/cctest/wasm/test-run-wasm.cc

Index: test/cctest/wasm/test-run-wasm.cc
diff --git a/test/cctest/wasm/test-run-wasm.cc b/test/cctest/wasm/test-run-wasm.cc
index da241541b8eb532a6324de7b1b3fc7016a73ba17..ee532ae807174b823d49b75440f0794d353e9c3c 100644
--- a/test/cctest/wasm/test-run-wasm.cc
+++ b/test/cctest/wasm/test-run-wasm.cc
@@ -905,6 +905,15 @@ WASM_EXEC_TEST(Br_height) {
   }
 }
 
+WASM_EXEC_TEST(Regression_660262) {
+  TestingModule module(execution_mode);
+  module.AddMemoryElems<int32_t>(8);
+  WasmRunner<int32_t> r(&module);
+  BUILD(r, kExprI8Const, 0x00, kExprI8Const, 0x00, kExprI32LoadMem, 0x00, 0x0f,
+        kExprBrTable, 0x00, 0x80, 0x00);  // entries=0
+  r.Call();
+}
+
 WASM_EXEC_TEST(BrTable0a) {
   WasmRunner<int32_t> r(execution_mode, MachineType::Int32());
   BUILD(r, B1(B1(WASM_BR_TABLE(WASM_GET_LOCAL(0), 0, BR_TARGET(0)))),