PPC/s390: [wasm] Acquire the context for TrapIf from a wasm frame

src/compiler/ppc/code-generator-ppc.cc

Index: src/compiler/ppc/code-generator-ppc.cc
diff --git a/src/compiler/ppc/code-generator-ppc.cc b/src/compiler/ppc/code-generator-ppc.cc
index 56755d24468a18737c3e70e0a5def3dc5603eb64..66c02b94014c41d6d6c9d1f62804621d1efb5e25 100644
--- a/src/compiler/ppc/code-generator-ppc.cc
+++ b/src/compiler/ppc/code-generator-ppc.cc
@@ -2057,7 +2057,7 @@ void CodeGenerator::AssembleArchTrap(Instruction* instr,
             ExternalReference::wasm_call_trap_callback_for_testing(isolate()),
             0);
       } else {
-        __ Move(cp, isolate()->native_context());
+        __ Move(cp, Smi::kZero);
         gen_->AssembleSourcePosition(instr_);
         __ CallRuntime(trap_id);
       }