tests: update tests, use blockchain test "network" field

Blockchain tests now include the "network" which determines the chain
config to use. Remove config matching based on test name and share the
name-to-config index with state tests.

Byzantium/Constantinople tests are still skipped because most of them
fail anyway.

tests/state_test_util.go

@@ -37,37 +37,6 @@ import (
 	"github.com/ethereum/go-ethereum/params"
 )
 
-// This table defines supported forks and their chain config.
-var stateTestForks = map[string]*params.ChainConfig{
-	"Frontier": &params.ChainConfig{
-		ChainId: big.NewInt(1),
-	},
-	"Homestead": &params.ChainConfig{
-		HomesteadBlock: big.NewInt(0),
-		ChainId:        big.NewInt(1),
-	},
-	"EIP150": &params.ChainConfig{
-		HomesteadBlock: big.NewInt(0),
-		EIP150Block:    big.NewInt(0),
-		ChainId:        big.NewInt(1),
-	},
-	"EIP158": &params.ChainConfig{
-		HomesteadBlock: big.NewInt(0),
-		EIP150Block:    big.NewInt(0),
-		EIP155Block:    big.NewInt(0),
-		EIP158Block:    big.NewInt(0),
-		ChainId:        big.NewInt(1),
-	},
-	"Metropolis": &params.ChainConfig{
-		HomesteadBlock:  big.NewInt(0),
-		EIP150Block:     big.NewInt(0),
-		EIP155Block:     big.NewInt(0),
-		EIP158Block:     big.NewInt(0),
-		MetropolisBlock: big.NewInt(0),
-		ChainId:         big.NewInt(1),
-	},
-}
-
 // StateTest checks transaction processing without block context.
 // See https://github.com/ethereum/EIPs/issues/176 for the test format specification.
 type StateTest struct {
@@ -167,9 +136,9 @@ func (t *StateTest) Subtests() []StateSubtest {
 
 // Run executes a specific subtest.
 func (t *StateTest) Run(subtest StateSubtest, vmconfig vm.Config) error {
-	config, ok := stateTestForks[subtest.Fork]
+	config, ok := Forks[subtest.Fork]
 	if !ok {
-		return fmt.Errorf("no config for fork %q", subtest.Fork)
+		return UnsupportedForkError{subtest.Fork}
 	}
 	block, _ := t.genesis(config).ToBlock()
 	db, _ := ethdb.NewMemDatabase()