core/vm: Make INVALID a defined opcode (#24017)

* core/vm: Define 0xfe opcode as INVALID

* core/vm: Remove opInvalid as opUndefined handles it
Co-authored-by: Alex Beregszaszi <alex@rtfs.hu>

accounts/abi/bind/backends/simulated_test.go

@@ -496,7 +496,7 @@ func TestEstimateGas(t *testing.T) {
 			GasPrice: big.NewInt(0),
 			Value:    nil,
 			Data:     common.Hex2Bytes("b9b046f9"),
-		}, 0, errors.New("invalid opcode: opcode 0xfe not defined"), nil},
+		}, 0, errors.New("invalid opcode: INVALID"), nil},
 
 		{"Valid", ethereum.CallMsg{
 			From:     addr,

core/vm/opcodes.go

@@ -213,6 +213,7 @@ const (
 
 	STATICCALL   OpCode = 0xfa
 	REVERT       OpCode = 0xfd
+	INVALID      OpCode = 0xfe
 	SELFDESTRUCT OpCode = 0xff
 )
 
@@ -378,6 +379,7 @@ var opCodeToString = map[OpCode]string{
 	CREATE2:      "CREATE2",
 	STATICCALL:   "STATICCALL",
 	REVERT:       "REVERT",
+	INVALID:      "INVALID",
 	SELFDESTRUCT: "SELFDESTRUCT",
 }
 
@@ -532,6 +534,7 @@ var stringToOp = map[string]OpCode{
 	"RETURN":         RETURN,
 	"CALLCODE":       CALLCODE,
 	"REVERT":         REVERT,
+	"INVALID":        INVALID,
 	"SELFDESTRUCT":   SELFDESTRUCT,
 }
 

eth/tracers/internal/tracetest/testdata/call_tracer/inner_throw_outer_revert.json

@@ -59,7 +59,7 @@
   "result": {
     "calls": [
       {
-        "error": "invalid opcode: opcode 0xfe not defined",
+        "error": "invalid opcode: INVALID",
         "from": "0x33056b5dcac09a9b4becad0e1dcf92c19bd0af76",
         "gas": "0x75fe3",
         "gasUsed": "0x75fe3",

eth/tracers/internal/tracetest/testdata/call_tracer_legacy/inner_throw_outer_revert.json

@@ -59,7 +59,7 @@
   "result": {
     "calls": [
       {
-        "error": "invalid opcode: opcode 0xfe not defined",
+        "error": "invalid opcode: INVALID",
         "from": "0x33056b5dcac09a9b4becad0e1dcf92c19bd0af76",
         "gas": "0x75fe3",
         "gasUsed": "0x75fe3",