[wasm] Do not use setjmp/longjmp in cctests.

src/compiler/x64/code-generator-x64.cc

Index: src/compiler/x64/code-generator-x64.cc
diff --git a/src/compiler/x64/code-generator-x64.cc b/src/compiler/x64/code-generator-x64.cc
index 324cc094597d26c47261abffd3c9cb1ef198f5aa..93e87068410f5f7a3717392f3289e701cedc78ae 100644
--- a/src/compiler/x64/code-generator-x64.cc
+++ b/src/compiler/x64/code-generator-x64.cc
@@ -2327,9 +2327,6 @@ void CodeGenerator::AssembleArchTrap(Instruction* instr,
       if (frame_elided_) {
         __ set_has_frame(old_has_frame);
       }
-      if (FLAG_debug_code) {
-        __ ud2();
-      }
     }
 
    private:
@@ -2341,15 +2338,20 @@ void CodeGenerator::AssembleArchTrap(Instruction* instr,
         __ CallCFunction(
             ExternalReference::wasm_call_trap_callback_for_testing(isolate()),
             0);
+        __ LeaveFrame(StackFrame::WASM_COMPILED);
+        __ Ret();
       } else {
         __ Move(rsi, 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);
+        if (FLAG_debug_code) {
+          __ ud2();
+        }
       }
-      ReferenceMap* reference_map =
-          new (gen_->zone()) ReferenceMap(gen_->zone());
-      gen_->RecordSafepoint(reference_map, Safepoint::kSimple, 0,
-                            Safepoint::kNoLazyDeopt);
     }
 
     bool frame_elided_;