Don't print host effect param in pretty path_generic_args

[compiler-errors]

Make own_args_no_defaults pass back the GenericParamDef, so that we can pass both the args and param definitions into path_generic_args. That allows us to use the GenericParamDef to filter out effect params.

This allows us to filter out the host param regardless of whether it's sym::host or true/false.

This also renames a couple of const_effect_param -> host_effect_param, and restores ~const pretty printing to TraitPredPrintModifiersAndPath.

cc #118785
r? @fee1-dead cc @oli-obk

[rustbot]

Some changes might have occurred in exhaustiveness checking

cc @Nadrieril

Some changes occurred in need_type_info.rs

cc @lcnr

[fee1-dead]

Thanks!

[fee1-dead]

@bors r+

[bors]

📌 Commit afa35e9 has been approved by fee1-dead

It is now in the queue for this repository.

[bors]

⌛ Testing commit afa35e9 with merge 42dfac5...

[bors]

☀️ Test successful - checks-actions
Approved by: fee1-dead
Pushing 42dfac5 to master...

[rust-timer]

Finished benchmarking commit (42dfac5): comparison URL.

Overall result: ✅ improvements - no action needed

@rustbot label: -perf-regression

Instruction count

This is a highly reliable metric that was used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-0.3%	[-0.3%, -0.3%]	2
All ❌✅ (primary)	-	-	0

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	3.9%	[3.9%, 3.9%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-1.7%	[-1.7%, -1.7%]	1
All ❌✅ (primary)	-	-	0

Cycles

This benchmark run did not return any relevant results for this metric.

Binary size

This benchmark run did not return any relevant results for this metric.

Bootstrap: 667.481s -> 670.131s (0.40%)
Artifact size: 314.13 MiB -> 314.17 MiB (0.02%)