reintegrate test_rpc back into all_tests

for a long time, test_rpc will crash all_tests
if they are combined together. but now it works fine

nimbus.nimble

@@ -47,7 +47,6 @@ proc test(name: string, lang = "c") =
 
 task test, "Run tests":
   test "all_tests"
-  test "test_rpc"
 
 task nimbus, "Build Nimbus":
   buildBinary "nimbus", "nimbus/", "-d:chronicles_log_level=TRACE"

tests/all_tests.nim

@@ -99,7 +99,7 @@ cliBuilder:
           ./test_generalstate_json,
           ./test_tracer_json,
           ./test_persistblock_json,
-          #./test_rpc, # it crash if we combine it here
+          ./test_rpc,
           ./test_op_arith,
           ./test_op_bit,
           ./test_op_env,

tests/test_rpc.nim

@@ -114,6 +114,7 @@ proc setupEnv(chain: BaseChainDB, signer, ks2: EthAddress, conf: NimbusConfigura
     blockHash: header.hash
     )
 
+proc rpcMain*() =
   suite "Remote Procedure Calls":
     # TODO: Include other transports such as Http
     var
@@ -399,3 +400,6 @@ suite "Remote Procedure Calls":
 
     rpcServer.stop()
     rpcServer.close()
+
+when isMainModule:
+  rpcMain()