Add IsTracing flag to ctx (#576)

## Describe your changes and provide context
Add flag to ctx for execution to know whether it's for real processing
or for simulation/tracers

## Testing performed to validate your change
local sei

Author: codchen

types/context.go

@@ -67,6 +67,8 @@ type Context struct {
 	txIndex      int
 
 	traceSpanContext context.Context
+
+	isTracing bool
 }
 
 // Proposed rename, not done to avoid API breakage
@@ -223,6 +225,10 @@ func (c Context) TraceSpanContext() context.Context {
 	return c.traceSpanContext
 }
 
+func (c Context) IsTracing() bool {
+	return c.isTracing
+}
+
 // WithEventManager returns a Context with an updated tx priority
 func (c Context) WithPriority(p int64) Context {
 	c.priority = p
@@ -494,6 +500,11 @@ func (c Context) WithExpireTxHandler(expireTxHandler func()) Context {
 	return c
 }
 
+func (c Context) WithIsTracing(it bool) Context {
+	c.isTracing = it
+	return c
+}
+
 // TODO: remove???
 func (c Context) IsZero() bool {
 	return c.ms == nil

x/upgrade/keeper/keeper.go

@@ -327,8 +327,8 @@ func (k Keeper) GetUpgradePlan(ctx sdk.Context) (plan types.Plan, havePlan bool)
 	return plan, true
 }
 
-// setDone marks this upgrade name as being done so the name can't be reused accidentally
-func (k Keeper) setDone(ctx sdk.Context, name string) {
+// SetDone marks this upgrade name as being done so the name can't be reused accidentally
+func (k Keeper) SetDone(ctx sdk.Context, name string) {
 	store := prefix.NewStore(ctx.KVStore(k.storeKey), []byte{types.DoneByte})
 	bz := make([]byte, 8)
 	binary.BigEndian.PutUint64(bz, uint64(ctx.BlockHeight()))
@@ -367,7 +367,7 @@ func (k Keeper) ApplyUpgrade(ctx sdk.Context, plan types.Plan) {
 	// This will prevent resubmission of upgrade msg after upgrade is already completed.
 	k.ClearIBCState(ctx, plan.Height)
 	k.ClearUpgradePlan(ctx)
-	k.setDone(ctx, plan.Name)
+	k.SetDone(ctx, plan.Name)
 }
 
 // IsSkipHeight checks if the given height is part of skipUpgradeHeights