I am afraid not.
What most verilog mandate is declaring the variable when the verilog module starts.
So in the previous case, it would seems like this.
logic _T_12; // Monitor.scala:396:20
logic _T_13; // Monitor.scala:549:20
always @(posedge clock) begin // Monitor.scala:397:15
_T_12 = _T_2 & ~(|a_first_counter); // Edges.scala:229:28, :230:25, Monitor.scala:396:20
_T_13 = _T_3 & ~(|d_first_counter); // Edges.scala:229:28, :230:25, Monitor.scala:549:20
opcode <= _T_12 ? io_in_a_bits_opcode : opcode; // Monitor.scala:390:32, :397:15
param <= _T_12 ? io_in_a_bits_param : param; // Monitor.scala:391:32, :398:15
size <= _T_12 ? io_in_a_bits_size : size; // Monitor.scala:392:32, :399:15
source <= _T_12 ? io_in_a_bits_source : source; // Monitor.scala:393:32, :400:15
address <= _T_12 ? io_in_a_bits_address : address; // Monitor.scala:394:32, :401:15
opcode_1 <= _T_13 ? io_in_d_bits_opcode : opcode_1; // Monitor.scala:542:29, :550:15
param_1 <= _T_13 ? io_in_d_bits_param : param_1; // Monitor.scala:543:29, :551:15
size_1 <= _T_13 ? io_in_d_bits_size : size_1; // Monitor.scala:544:29, :552:15
source_1 <= _T_13 ? io_in_d_bits_source : source_1; // Monitor.scala:545:29, :553:15
sink <= _T_13 ? io_in_d_bits_sink : sink; // Monitor.scala:546:29, :554:15
denied <= _T_13 ? io_in_d_bits_denied : denied; // Monitor.scala:547:29, :555:15
end // always @(posedge)
Also what I know of on the verilog, they don’t have the local variable concept in the always block.
So when the hardware programmer first learn the verilog programming language and tries the commercial verilog compiler, they have to declare the wire, reg, local variable at the first of the module, and then uses the wire in assign statement, the reg in always block.