baseapp: add sdk.Result to simulation response

types/result.go

@@ -17,7 +17,7 @@ type GasInfo struct {
 	// GasWanted is the maximum units of work we allow this tx to perform.
 	GasWanted uint64
 
-	// GasUsed is the amount of gas actually consumed. NOTE: unimplemented
+	// GasUsed is the amount of gas actually consumed.
 	GasUsed uint64
 }
 
@@ -35,6 +35,13 @@ type Result struct {
 	Events Events
 }
 
+// SimulationResponse defines the response generated when a transaction is successfully
+// simulated by the Baseapp.
+type SimulationResponse struct {
+	GasInfo
+	Result *Result
+}
+
 // ABCIMessageLogs represents a slice of ABCIMessageLog.
 type ABCIMessageLogs []ABCIMessageLog