[wasm] Add guard regions to end of WebAssembly.Memory buffers

test/webkit/webkit.status

Index: test/webkit/webkit.status
diff --git a/test/webkit/webkit.status b/test/webkit/webkit.status
index 0437a858c63ac94c484a643a07534661a114a679..f4bce1c3492eb4a9293431236c09295bda6b9816 100644
--- a/test/webkit/webkit.status
+++ b/test/webkit/webkit.status
@@ -135,4 +135,9 @@
 }],  # variant == asm_wasm
 
 ##############################################################################
+['variant == wasm_traps', {
+  '*': [SKIP],
+}],  # variant == wasm_traps
+
+##############################################################################
 ]