renamed message.nim, precompiles.nim, gas_costs.nim => v2*.nim

why:
  these files provide part of the externally accessible interface
  provided by vm_message.nim, vm_precompile.nim, vm_gas_cost.nim. so the
  new filename indicates that the source code belongs to vm2 (rather
  than vm).

nimbus/vm2/computation.nim

@@ -14,10 +14,10 @@ import
   chronicles, strformat, macros, options, times,
   sets, eth/[common, keys],
   ../constants, ../errors,
-  ./interpreter/[v2opcode_values, gas_meter, gas_costs, v2forks],
+  ./interpreter/[v2opcode_values, gas_meter, v2gas_costs, v2forks],
-  ./code_stream, ./memory, ./message, ./stack, ./v2types, ./v2state,
+  ./code_stream, ./memory, ./v2message, ./stack, ./v2types, ./v2state,
   ../db/[accounts_cache, db_chain],
-  ../utils/header, ./precompiles,
+  ../utils/header, ./v2precompiles,
   ./transaction_tracer, ../utils
 
 when defined(chronicles_log_level):

nimbus/vm2/interpreter.nim

@@ -30,7 +30,7 @@ export
 
 # see vm_message
 import
-  ./message as vmm
+  ./v2message as vmm
 export
   vmm.isCreate
 

nimbus/vm2/interpreter/opcodes_impl.nim

@@ -9,7 +9,7 @@ import
   strformat, times, sets, sequtils, options,
   chronicles, stint, nimcrypto, stew/ranges/ptr_arith, eth/common,
   ./utils/[macros_procs_opcodes, utils_numeric],
-  ./gas_meter, ./gas_costs, ./v2opcode_values, ./v2forks,
+  ./gas_meter, ./v2gas_costs, ./v2opcode_values, ./v2forks,
   ../memory, ../stack, ../code_stream, ../computation, ../v2state, ../v2types,
   ../../errors, ../../constants,
   ../../db/[db_chain, accounts_cache]

nimbus/vm2/interpreter_dispatch.nim

@@ -8,8 +8,8 @@
 import
   tables, macros,
   chronicles,
-  ./interpreter/[v2opcode_values, opcodes_impl, v2forks, gas_costs, gas_meter, utils/macros_gen_opcodes],
+  ./interpreter/[v2opcode_values, opcodes_impl, v2forks, v2gas_costs, gas_meter, utils/macros_gen_opcodes],
-  ./code_stream, ./v2types, ../errors, ./precompiles, ./stack,
+  ./code_stream, ./v2types, ../errors, ./v2precompiles, ./stack,
   terminal # Those are only needed for logging
 
 logScope:

nimbus/vm2/v2precompiles.nim

@@ -15,7 +15,7 @@ when defined(evmc_enabled):
 
 import
   ./v2types,
-  ./interpreter/[gas_meter, gas_costs, utils/utils_numeric, v2forks],
+  ./interpreter/[gas_meter, v2gas_costs, utils/utils_numeric, v2forks],
   ../errors, stint, eth/[keys, common], chronicles, tables, macros,
   math, nimcrypto, bncurve/[fields, groups], ./blake2b_f, ./blscurve
 

nimbus/vm2/v2state.nim

@@ -16,7 +16,7 @@ when defined(evmc_enabled):
 import
   macros, strformat, tables, sets, options,
   eth/[common, keys, rlp], nimcrypto/keccak,
-  ./interpreter/[v2forks, gas_costs], ../errors,
+  ./interpreter/[v2forks, v2gas_costs], ../errors,
   ../constants, ../db/[db_chain, accounts_cache],
   ../utils, json, ./transaction_tracer, ./v2types,
   ../config, ../../stateless/[witness_from_tree, witness_types]

nimbus/vm2/v2types.nim

@@ -17,7 +17,7 @@ import
   tables, eth/common,
   options, json, sets,
   ./memory, ./stack, ./code_stream,
-  ./interpreter/[gas_costs, v2opcode_values, v2forks],
+  ./interpreter/[v2gas_costs, v2opcode_values, v2forks],
   # TODO - will be hidden at a lower layer
   ../db/[db_chain, accounts_cache]
 

nimbus/vm_gas_costs.nim

@@ -13,7 +13,7 @@ when defined(evmc_enabled) or not defined(vm2_enabled):
     ./vm/interpreter/gas_costs as vmg
 else:
   import
-    ./vm2/interpreter/gas_costs as vmg
+    ./vm2/interpreter/v2gas_costs as vmg
 
 export
   vmg.Bls12381G1AddGas,

nimbus/vm_message.nim

@@ -16,7 +16,7 @@ when defined(evmc_enabled) or not defined(vm2_enabled):
     ./vm/message as vmm
 else:
   import
-    ./vm2/message as vmm
+    ./vm2/v2message as vmm
 
 export
   vmm.isCreate

nimbus/vm_precompiles.nim

@@ -13,7 +13,7 @@ when defined(evmc_enabled) or not defined(vm2_enabled):
     ./vm/precompiles as vmp
 else:
   import
-    ./vm2/precompiles as vmp
+    ./vm2/v2precompiles as vmp
 
 export
   vmp.PrecompileAddresses,