[wasm] Acquire the context for TrapIf from a wasm frame

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

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/code-generator.h"
 #include "src/compilation-info.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/osr.h"
@@ skipping 1760 matching lines @@
       if (trap_id == Runtime::kNumFunctions) {
         // We cannot test calls to the runtime in cctest/test-run-wasm.
         // Therefore we emit a call to C here instead of a call to the runtime.
         // We use the context register as the scratch register, because we do
         // not have a context here.
         __ PrepareCallCFunction(0, 0, cp);
         __ CallCFunction(
             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);
       }
       ReferenceMap* reference_map =
           new (gen_->zone()) ReferenceMap(gen_->zone());
       gen_->RecordSafepoint(reference_map, Safepoint::kSimple, 0,
                             Safepoint::kNoLazyDeopt);
     }
 
     bool frame_elided_;
@@ skipping 581 matching lines @@
       padding_size -= v8::internal::Assembler::kInstrSize;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8