Fixes missing error when using trait constraint.

[esdrubal]

Description

When using trait constraints a blanket implementation is added for the trait constraint generic parameter.

This changes avoid the generation of other implementations from the type parameter generic implementation.

Fixes #5873

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 bf0d0f4

Click to view benchmark

Test	Base	PR	%
code_action	5.3±0.03ms	5.4±0.15ms	+1.89%
code_lens	299.0±9.33ns	331.7±18.66ns	+10.94%
compile	6.3±0.05s	6.3±0.05s	0.00%
completion	4.9±0.09ms	4.8±0.07ms	-2.04%
did_change_with_caching	6.3±0.09s	6.2±0.10s	-1.59%
document_symbol	944.9±24.05µs	991.3±53.71µs	+4.91%
format	74.3±0.75ms	77.1±1.73ms	+3.77%
goto_definition	360.7±8.47µs	370.9±5.37µs	+2.83%
highlight	8.8±0.08ms	8.7±0.26ms	-1.14%
hover	608.8±20.42µs	682.4±20.71µs	+12.09%
idents_at_position	171.1±8.97µs	124.5±2.47µs	-27.24%
inlay_hints	652.8±22.34µs	661.6±31.01µs	+1.35%
on_enter	518.5±24.85ns	477.2±13.45ns	-7.97%
parent_decl_at_position	3.6±0.04ms	3.6±0.08ms	0.00%
prepare_rename	360.3±5.85µs	372.6±5.46µs	+3.41%
rename	9.3±0.19ms	9.4±0.36ms	+1.08%
semantic_tokens	1026.8±49.66µs	1045.7±32.69µs	+1.84%
token_at_position	446.2±4.27µs	365.1±3.90µs	-18.18%
tokens_at_position	3.7±0.05ms	3.6±0.04ms	-2.70%
tokens_for_file	441.5±3.68µs	429.5±3.77µs	-2.72%
traverse	51.6±2.04ms	51.7±1.49ms	+0.19%

[github-actions]

Benchmark for 7880f54

Click to view benchmark

Test	Base	PR	%
code_action	5.4±0.10ms	5.5±0.24ms	+1.85%
code_lens	293.7±7.55ns	325.2±8.91ns	+10.73%
compile	6.4±0.07s	6.3±0.05s	-1.56%
completion	5.0±0.22ms	5.1±0.22ms	+2.00%
did_change_with_caching	6.3±0.05s	6.3±0.11s	0.00%
document_symbol	943.0±24.31µs	944.0±21.77µs	+0.11%
format	74.7±1.01ms	74.4±1.39ms	-0.40%
goto_definition	366.1±6.68µs	361.5±6.24µs	-1.26%
highlight	8.8±0.25ms	9.0±0.31ms	+2.27%
hover	610.2±21.13µs	618.9±9.83µs	+1.43%
idents_at_position	121.7±0.66µs	122.0±1.72µs	+0.25%
inlay_hints	651.3±26.80µs	649.4±17.63µs	-0.29%
on_enter	489.9±16.94ns	516.6±18.33ns	+5.45%
parent_decl_at_position	3.6±0.04ms	3.6±0.05ms	0.00%
prepare_rename	357.5±7.08µs	360.8±5.88µs	+0.92%
rename	9.4±0.17ms	9.5±0.33ms	+1.06%
semantic_tokens	1033.9±16.89µs	1046.8±23.22µs	+1.25%
token_at_position	353.9±2.97µs	357.4±3.37µs	+0.99%
tokens_at_position	3.6±0.05ms	3.6±0.05ms	0.00%
tokens_for_file	424.0±2.68µs	424.9±2.81µs	+0.21%
traverse	51.4±2.22ms	53.0±1.17ms	+3.11%