8285342: Zero build failure with clang due to values not handled in switch

Reviewed-by: shade, aph

src/hotspot/cpu/zero/zeroInterpreter_zero.cpp

@@ -619,6 +619,8 @@ int ZeroInterpreter::getter_entry(Method* method, intptr_t UNUSED, TRAPS) {
       stack->alloc(wordSize);
       topOfStack = stack->sp();
       break;
+    default:
+      ;
   }
 
   // Read the field to stack(0)

src/hotspot/share/interpreter/zero/bytecodeInterpreter.cpp

@@ -2994,6 +2994,8 @@ run:
         SET_STACK_OBJECT(ts->earlyret_oop(), 0);
         MORE_STACK(1);
         break;
+      default:
+        ShouldNotReachHere();
     }
 
     ts->clr_earlyret_value();