markused, generics, export attribute, check: Bad error message

[enghitalo]

Describe the bug

Bad error message

Reproduction Steps

Example 1

@[export: "sort_array"]
pub fn sort_array[T](mut arr []T) {
	arr.sort(|a, b| a < b)
}

Error:

0x7972a0b88a0d: at ???: RUNTIME ERROR: invalid memory access
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:13303: by v__ast__AnonFn_to_sumtype_v__ast__Expr
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:46192: by v__markused__Walker_expr
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:46475: by v__markused__Walker_call_expr
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:45917: by v__markused__Walker_expr
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:45754: by v__markused__Walker_stmt
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:45870: by v__markused__Walker_stmts
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:46457: by v__markused__Walker_fn_decl
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:45608: by v__markused__Walker_mark_markused_fns
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:45302: by v__markused__mark_used
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:55837: by v__builder__Builder_middle_stages
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:55854: by v__builder__Builder_front_and_middle_stages
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:58395: by v__builder__cbuilder__gen_c
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:58367: by v__builder__cbuilder__build_c
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:58358: by v__builder__cbuilder__compile_c
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:58275: by v__builder__Builder_rebuild
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:57421: by v__builder__compile
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:58787: by main__rebuild
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:58700: by main__main
/tmp/v_1000/v.01KABQF1YZ1SCJNP5X4ZV2NJYS.tmp.c:59747: by main

Example 2

@[export: "sort_array"]
pub fn sort_array[T](mut arr []T) {
	arr.sort(|a, b| a < b)
}

fn main() {
	mut arr := [5, 3, 8, 1, 2]
	sort_array(mut arr)
	println(arr) // Output should be a sorted array: [1, 2, 3, 5, 8]
}

Error:

a.v:2:1: error: duplicate export name `sort_array`
    1 | @[export: "sort_array"]
    2 | pub fn sort_array[T](mut arr []T) {
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    3 |     arr.sort(|a, b| a < b)
    4 | }

Expected Behavior

Better error message like V haven't support for generic function exporting

Current Behavior

errors

Possible Solution

No response

Additional Information/Context

No response

V version

V 0.4.12 1bf1abd

Environment details (OS name and version, etc.)

Ubuntu

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