Fix and improve errors when the entry fns cannot be generated

[xunilrj]

Description

This PR improves fix a problem when a type cannot be auto-impled and improve error messages for this case.

This can be seen on tests/types/contracts/type_inside_enum in the Rust SDK repo.

     Running `target/debug/forc build --path /home/xunilrj/github/fuels-rs/packages/fuels --experimental-new-encoding`
thread 'main' panicked at sway-ir/src/constant.rs:172:14:
Enums are aggregates.
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Given that this PR also improve implementation of arrays for AbiEncode and AbiDecode, the entry function is actually generated. But in case of error, it will fail like:

error
    --> /home/xunilrj/.forc/git/checkouts/std-9be0d6062747ea7/5645f10143243e1fd64a55002cd5c09730636ece/sway-lib-core/src/codec.sw:2192:8
     |
2190 | 
2191 | pub trait AbiDecode {
2192 |     fn abi_decode(ref mut buffer: BufferReader) -> Self;
     |        ^^^^^^^^^^ No method named "abi_decode" found for type "SomeEnum".
2193 | }
     |
____

error
 --> <autogenerated>:5:61
  |
3 | 
4 |                     let args: (SomeEnum,) = decode_second_param::<(SomeEnum,)>();
5 |                     let result_arr_inside_enum: raw_slice = encode::<SomeEnum>(__contract_entry_arr_inside_enum(args.0));
  |                                                             ^^^^^^^^^^^^^^^^^^ Trait "AbiEncode" is not implemented for type "SomeEnum".
6 |                     __contract_ret(result_arr_inside_enum.ptr(), result_arr_inside_enum.len::<u8>());
7 |                 }
  |
____

error
  --> <autogenerated>:24:61
   |
22 | 
23 |                     let args: (SomeEnum,) = decode_second_param::<(SomeEnum,)>();
24 |                     let result_str_inside_enum: raw_slice = encode::<SomeEnum>(__contract_entry_str_inside_enum(args.0));
   |                                                             ^^^^^^^^^^^^^^^^^^ Trait "AbiEncode" is not implemented for type "SomeEnum".
25 |                     __contract_ret(result_str_inside_enum.ptr(), result_str_inside_enum.len::<u8>());
26 |                 }
   |
____

error: Could not generate the entry method because one of the arguments does not implement AbiEncode/AbiDecode
____

  Aborting due to 4 errors.
Error: Failed to compile type_inside_enum

Checklist

• I have linked to any relevant issues.
• I have commented my code, particularly in hard-to-understand areas.
• I have updated the documentation where relevant (API docs, the reference, and the Sway book).
  • If my change requires substantial documentation changes, I have requested support from the DevRel team
• I have added tests that prove my fix is effective or that my feature works.
• I have added (or requested a maintainer to add) the necessary Breaking* or New Feature labels where relevant.
• I have done my best to ensure that my PR adheres to the Fuel Labs Code Review Standards.
• I have requested a review from the relevant team or maintainers.

[github-actions]

Benchmark for d8c8acd

Click to view benchmark

Test	Base	PR	%
code_action	5.5±0.35ms	5.3±0.17ms	-3.64%
code_lens	297.7±4.93ns	296.6±8.61ns	-0.37%
compile	6.0±0.11s	6.0±0.11s	0.00%
completion	4.9±0.15ms	4.8±0.13ms	-2.04%
did_change_with_caching	5.5±0.03s	5.5±0.05s	0.00%
document_symbol	1005.3±43.41µs	1006.4±35.91µs	+0.11%
format	70.6±1.15ms	72.1±1.35ms	+2.12%
goto_definition	365.0±10.14µs	363.9±7.60µs	-0.30%
highlight	8.8±0.22ms	8.7±0.17ms	-1.14%
hover	659.4±12.27µs	594.1±10.46µs	-9.90%
idents_at_position	122.3±1.36µs	121.7±0.71µs	-0.49%
inlay_hints	660.1±37.95µs	654.4±7.42µs	-0.86%
on_enter	485.3±13.18ns	504.7±11.28ns	+4.00%
parent_decl_at_position	3.6±0.04ms	3.6±0.02ms	0.00%
prepare_rename	360.6±5.76µs	359.7±5.87µs	-0.25%
rename	9.3±0.17ms	9.2±0.20ms	-1.08%
semantic_tokens	1047.8±14.63µs	1038.1±28.66µs	-0.93%
token_at_position	363.8±3.72µs	356.8±3.73µs	-1.92%
tokens_at_position	3.6±0.02ms	3.6±0.04ms	0.00%
tokens_for_file	408.6±2.43µs	409.9±3.32µs	+0.32%
traverse	44.9±1.55ms	44.7±1.83ms	-0.45%

[github-actions]

Benchmark for af8c0f4

Click to view benchmark

Test	Base	PR	%
code_action	5.5±0.05ms	5.5±0.02ms	0.00%
code_lens	288.2±9.00ns	334.6±10.42ns	+16.10%
compile	6.0±0.07s	5.9±0.04s	-1.67%
completion	4.9±0.02ms	5.0±0.02ms	+2.04%
did_change_with_caching	5.4±0.03s	5.4±0.03s	0.00%
document_symbol	993.0±41.40µs	988.5±33.87µs	-0.45%
format	93.6±1.83ms	89.5±5.15ms	-4.38%
goto_definition	365.1±5.17µs	369.1±9.66µs	+1.10%
highlight	9.1±0.20ms	9.1±0.03ms	0.00%
hover	609.8±18.84µs	663.3±12.83µs	+8.77%
idents_at_position	121.8±0.34µs	122.6±0.61µs	+0.66%
inlay_hints	670.6±16.71µs	723.9±22.62µs	+7.95%
on_enter	503.7±12.15ns	497.1±15.63ns	-1.31%
parent_decl_at_position	3.7±0.02ms	3.8±0.02ms	+2.70%
prepare_rename	361.7±6.46µs	362.2±6.16µs	+0.14%
rename	9.6±0.15ms	9.6±0.02ms	0.00%
semantic_tokens	1036.1±33.15µs	1059.9±21.22µs	+2.30%
token_at_position	348.8±3.10µs	356.0±3.03µs	+2.06%
tokens_at_position	3.8±0.12ms	3.7±0.03ms	-2.63%
tokens_for_file	430.6±5.18µs	410.5±2.24µs	-4.67%
traverse	43.6±1.66ms	43.5±1.32ms	-0.23%

[github-actions]

Benchmark for 7f9340c

Click to view benchmark

Test	Base	PR	%
code_action	5.3±0.07ms	5.6±0.08ms	+5.66%
code_lens	296.4±13.49ns	292.6±5.83ns	-1.28%
compile	6.0±0.05s	7.8±0.22s	+30.00%
completion	4.9±0.10ms	5.3±0.44ms	+8.16%
did_change_with_caching	5.6±0.04s	7.3±0.15s	+30.36%
document_symbol	956.4±9.18µs	970.2±23.74µs	+1.44%
format	73.2±2.61ms	81.7±2.13ms	+11.61%
goto_definition	367.6±5.75µs	367.6±5.51µs	0.00%
highlight	8.8±0.06ms	9.1±0.03ms	+3.41%
hover	602.0±19.43µs	651.0±15.53µs	+8.14%
idents_at_position	124.3±1.30µs	122.4±1.64µs	-1.53%
inlay_hints	677.0±24.76µs	675.2±19.16µs	-0.27%
on_enter	487.3±13.89ns	494.2±14.16ns	+1.42%
parent_decl_at_position	3.6±0.05ms	3.8±0.09ms	+5.56%
prepare_rename	366.6±5.69µs	361.8±7.57µs	-1.31%
rename	9.3±0.17ms	9.9±0.53ms	+6.45%
semantic_tokens	1056.9±24.05µs	1058.8±34.11µs	+0.18%
token_at_position	361.7±7.27µs	362.6±3.22µs	+0.25%
tokens_at_position	3.6±0.05ms	3.7±0.03ms	+2.78%
tokens_for_file	411.5±1.99µs	420.6±4.35µs	+2.21%
traverse	46.4±2.72ms	51.3±2.67ms	+10.56%

[github-actions]

Benchmark for c663ef2

Click to view benchmark

Test	Base	PR	%
code_action	5.5±0.03ms	5.4±0.14ms	-1.82%
code_lens	290.4±6.59ns	339.5±16.66ns	+16.91%
compile	5.9±0.08s	7.2±0.04s	+22.03%
completion	4.9±0.08ms	4.9±0.09ms	0.00%
did_change_with_caching	5.4±0.03s	6.9±0.03s	+27.78%
document_symbol	1000.6±36.20µs	1040.5±21.12µs	+3.99%
format	91.9±1.12ms	92.2±0.94ms	+0.33%
goto_definition	362.4±2.92µs	371.4±4.14µs	+2.48%
highlight	9.1±0.03ms	8.8±0.02ms	-3.30%
hover	665.7±36.96µs	650.7±27.11µs	-2.25%
idents_at_position	123.9±0.53µs	123.6±0.67µs	-0.24%
inlay_hints	662.4±20.53µs	661.7±19.83µs	-0.11%
on_enter	505.4±11.79ns	493.4±21.99ns	-2.37%
parent_decl_at_position	3.7±0.03ms	3.6±0.03ms	-2.70%
prepare_rename	361.9±8.31µs	373.7±4.66µs	+3.26%
rename	9.6±0.16ms	9.3±0.02ms	-3.12%
semantic_tokens	1040.1±16.91µs	1049.1±12.41µs	+0.87%
token_at_position	350.3±3.26µs	358.3±5.24µs	+2.28%
tokens_at_position	3.7±0.03ms	3.6±0.25ms	-2.70%
tokens_for_file	414.1±1.84µs	406.9±2.89µs	-1.74%
traverse	42.9±1.62ms	49.5±1.86ms	+15.38%

[github-actions]

Benchmark for 6764d51

Click to view benchmark

Test	Base	PR	%
code_action	5.5±0.13ms	5.5±0.15ms	0.00%
code_lens	292.1±11.24ns	298.1±8.61ns	+2.05%
compile	6.1±0.09s	7.5±0.07s	+22.95%
completion	5.0±0.13ms	5.0±0.15ms	0.00%
did_change_with_caching	5.6±0.05s	7.0±0.04s	+25.00%
document_symbol	968.5±30.27µs	1045.9±48.06µs	+7.99%
format	91.2±2.10ms	90.3±1.59ms	-0.99%
goto_definition	360.2±8.65µs	365.7±20.52µs	+1.53%
highlight	9.2±0.30ms	9.0±0.24ms	-2.17%
hover	606.1±20.87µs	650.5±14.11µs	+7.33%
idents_at_position	122.9±0.43µs	124.3±2.89µs	+1.14%
inlay_hints	666.9±17.14µs	668.0±32.04µs	+0.16%
on_enter	478.0±17.22ns	479.9±25.53ns	+0.40%
parent_decl_at_position	3.7±0.07ms	3.7±0.09ms	0.00%
prepare_rename	362.2±16.99µs	363.4±8.87µs	+0.33%
rename	9.6±0.21ms	9.6±0.15ms	0.00%
semantic_tokens	1031.7±16.01µs	1042.7±11.46µs	+1.07%
token_at_position	363.5±2.93µs	362.0±4.05µs	-0.41%
tokens_at_position	3.7±0.03ms	3.7±0.05ms	0.00%
tokens_for_file	412.3±2.46µs	411.0±2.78µs	-0.32%
traverse	44.3±1.94ms	51.0±1.80ms	+15.12%

[github-actions]

Benchmark for 4ce2783

Click to view benchmark

Test	Base	PR	%
code_action	5.4±0.03ms	5.3±0.03ms	-1.85%
code_lens	327.8±10.98ns	290.1±6.74ns	-11.50%
compile	6.0±0.13s	7.5±0.16s	+25.00%
completion	4.9±0.12ms	5.0±0.20ms	+2.04%
did_change_with_caching	5.5±0.09s	7.1±0.14s	+29.09%
document_symbol	952.0±9.69µs	1014.1±41.37µs	+6.52%
format	89.6±1.62ms	90.8±2.18ms	+1.34%
goto_definition	363.1±5.41µs	367.1±8.83µs	+1.10%
highlight	9.0±0.17ms	9.0±0.09ms	0.00%
hover	608.4±14.92µs	643.6±9.69µs	+5.79%
idents_at_position	121.7±0.73µs	122.2±1.55µs	+0.41%
inlay_hints	651.7±17.27µs	657.8±21.28µs	+0.94%
on_enter	485.3±14.95ns	519.3±28.67ns	+7.01%
parent_decl_at_position	3.7±0.05ms	3.6±0.07ms	-2.70%
prepare_rename	361.8±8.01µs	367.8±4.65µs	+1.66%
rename	9.5±0.22ms	9.3±0.39ms	-2.11%
semantic_tokens	1037.4±10.62µs	1062.8±14.79µs	+2.45%
token_at_position	355.0±5.32µs	365.2±3.87µs	+2.87%
tokens_at_position	3.7±0.05ms	3.6±0.05ms	-2.70%
tokens_for_file	422.0±4.70µs	426.1±1.71µs	+0.97%
traverse	45.6±1.28ms	52.5±2.03ms	+15.13%

[github-actions]

Benchmark for 5570e1d

Click to view benchmark

Test	Base	PR	%
code_action	5.4±0.11ms	5.5±0.07ms	+1.85%
code_lens	308.7±8.67ns	288.9±14.07ns	-6.41%
compile	5.1±0.12s	6.5±0.11s	+27.45%
completion	4.9±0.08ms	5.0±0.05ms	+2.04%
did_change_with_caching	4.9±0.04s	6.3±0.05s	+28.57%
document_symbol	933.2±23.18µs	944.4±9.65µs	+1.20%
format	72.0±2.71ms	77.0±1.68ms	+6.94%
goto_definition	374.7±8.23µs	372.8±7.78µs	-0.51%
highlight	9.0±0.02ms	9.1±0.30ms	+1.11%
hover	563.8±8.66µs	608.1±17.01µs	+7.86%
idents_at_position	123.8±1.30µs	124.4±0.89µs	+0.48%
inlay_hints	667.1±21.68µs	677.3±21.36µs	+1.53%
on_enter	491.3±11.84ns	503.0±12.23ns	+2.38%
parent_decl_at_position	3.7±0.05ms	3.7±0.06ms	0.00%
prepare_rename	365.1±5.26µs	374.2±8.43µs	+2.49%
rename	9.5±0.03ms	9.6±0.18ms	+1.05%
semantic_tokens	1041.2±18.66µs	1056.6±12.59µs	+1.48%
token_at_position	365.5±5.51µs	370.8±1.78µs	+1.45%
tokens_at_position	3.7±0.04ms	3.7±0.02ms	0.00%
tokens_for_file	414.1±3.26µs	418.0±5.53µs	+0.94%
traverse	43.6±0.98ms	49.6±1.29ms	+13.76%