fix dca for encoding v1 autogenerated code

[xunilrj]

Description

This PR is part of #5727 and fixes a problem with AbiEncode/AbiDecode code generation. The problem lies in the fact that to encode/decode structs we need to "touch" all fields. Which makes all fields to pass DCA.

Now, when a StructFieldAccess lives inside an autogenerated source, the "code flow graph" will be built as usual, but no edge will be created to the struct field, nor to the field owner struct declaration.

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 1073bd5

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Test	Base	PR	%
code_action	5.5±0.10ms	5.7±0.18ms	+3.64%
code_lens	327.5±9.35ns	329.9±16.64ns	+0.73%
compile	3.1±0.05s	3.1±0.05s	0.00%
completion	4.7±0.09ms	4.9±0.16ms	+4.26%
did_change_with_caching	3.0±0.03s	3.0±0.03s	0.00%
document_symbol	1006.8±43.41µs	943.9±23.99µs	-6.25%
format	89.7±1.27ms	88.2±0.51ms	-1.67%
goto_definition	358.3±4.65µs	367.6±8.97µs	+2.60%
highlight	9.1±0.12ms	9.3±0.24ms	+2.20%
hover	478.0±5.99µs	487.8±8.47µs	+2.05%
idents_at_position	122.4±0.52µs	124.4±1.33µs	+1.63%
inlay_hints	657.8±22.00µs	665.0±14.93µs	+1.09%
on_enter	490.7±22.29ns	494.2±13.03ns	+0.71%
parent_decl_at_position	3.7±0.05ms	3.8±0.08ms	+2.70%
prepare_rename	359.2±9.01µs	367.8±7.50µs	+2.39%
rename	9.8±0.14ms	10.1±0.12ms	+3.06%
semantic_tokens	1024.7±28.49µs	1039.0±17.61µs	+1.40%
token_at_position	350.5±5.01µs	355.4±2.80µs	+1.40%
tokens_at_position	3.7±0.08ms	3.8±0.07ms	+2.70%
tokens_for_file	418.3±2.65µs	420.1±4.12µs	+0.43%
traverse	42.4±1.07ms	42.3±0.61ms	-0.24%

[github-actions]

Benchmark for a57b7ad

Click to view benchmark

Test	Base	PR	%
code_action	5.4±0.05ms	5.1±0.14ms	-5.56%
code_lens	329.9±6.78ns	334.7±14.95ns	+1.45%
compile	2.9±0.03s	3.0±0.04s	+3.45%
completion	4.7±0.08ms	4.6±0.03ms	-2.13%
did_change_with_caching	2.8±0.05s	2.8±0.04s	0.00%
document_symbol	939.6±15.08µs	931.0±26.24µs	-0.92%
format	87.9±1.68ms	87.7±1.53ms	-0.23%
goto_definition	393.9±6.44µs	355.0±9.89µs	-9.88%
highlight	9.0±0.21ms	8.7±0.32ms	-3.33%
hover	507.4±8.32µs	473.0±10.30µs	-6.78%
idents_at_position	122.3±1.32µs	122.7±2.41µs	+0.33%
inlay_hints	654.1±24.83µs	644.1±26.04µs	-1.53%
on_enter	495.6±14.65ns	470.8±15.62ns	-5.00%
parent_decl_at_position	3.7±0.05ms	3.6±0.07ms	-2.70%
prepare_rename	392.0±5.60µs	351.6±10.37µs	-10.31%
rename	9.5±0.16ms	9.1±0.38ms	-4.21%
semantic_tokens	1007.0±15.64µs	1028.4±26.38µs	+2.13%
token_at_position	354.3±4.50µs	353.0±5.30µs	-0.37%
tokens_at_position	3.7±0.04ms	3.6±0.04ms	-2.70%
tokens_for_file	415.8±4.73µs	430.3±5.18µs	+3.49%
traverse	40.5±1.25ms	40.9±1.05ms	+0.99%

[github-actions]

Benchmark for 7ddc463

Click to view benchmark

Test	Base	PR	%
code_action	5.2±0.06ms	5.4±0.05ms	+3.85%
code_lens	286.9±14.65ns	283.9±7.58ns	-1.05%
compile	2.9±0.04s	2.9±0.05s	0.00%
completion	4.5±0.09ms	4.7±0.13ms	+4.44%
did_change_with_caching	2.9±0.07s	2.8±0.05s	-3.45%
document_symbol	964.2±32.34µs	1022.5±44.35µs	+6.05%
format	74.0±0.96ms	75.1±1.34ms	+1.49%
goto_definition	364.1±12.32µs	370.0±5.50µs	+1.62%
highlight	8.7±0.04ms	9.1±0.17ms	+4.60%
hover	480.2±4.42µs	490.3±7.20µs	+2.10%
idents_at_position	123.3±0.46µs	123.2±1.16µs	-0.08%
inlay_hints	651.0±21.36µs	680.1±22.40µs	+4.47%
on_enter	465.0±9.90ns	464.8±23.42ns	-0.04%
parent_decl_at_position	3.6±0.05ms	3.7±0.05ms	+2.78%
prepare_rename	362.5±7.34µs	369.0±6.89µs	+1.79%
rename	9.2±0.15ms	9.6±0.16ms	+4.35%
semantic_tokens	987.0±22.34µs	1000.4±19.03µs	+1.36%
token_at_position	363.0±1.86µs	361.9±4.85µs	-0.30%
tokens_at_position	3.6±0.07ms	3.7±0.03ms	+2.78%
tokens_for_file	419.9±2.67µs	423.7±2.32µs	+0.90%
traverse	40.7±1.29ms	41.1±1.59ms	+0.98%