cairo-lang-semantic 2.18.0

Cairo semantic model.
Documentation 
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//! > Test redefinition of the same name.

//! > test_runner_name
test_function_diagnostics(expect_diagnostics: true)

//! > function_code
fn foo() {}

//! > function_name
foo

//! > module_code
fn abc() {}

fn abc(a: felt252) {}

mod inner {
    struct abc {}
}
use inner::abc;

struct abc {
    a: felt252,
}

enum abc {
    Abc: felt252,
}

mod abc {}

trait abc {}

impl abc of abc;

//! > expected_diagnostics
error[E2118]: The name `abc` is defined multiple times.
 --> lib.cairo:3:4
fn abc(a: felt252) {}
   ^^^

error[E2118]: The name `abc` is defined multiple times.
 --> lib.cairo:8:12
use inner::abc;
           ^^^

error[E2118]: The name `abc` is defined multiple times.
 --> lib.cairo:10:8
struct abc {
       ^^^

error[E2118]: The name `abc` is defined multiple times.
 --> lib.cairo:14:6
enum abc {
     ^^^

error[E2118]: The name `abc` is defined multiple times.
 --> lib.cairo:18:5
mod abc {}
    ^^^

error[E2118]: The name `abc` is defined multiple times.
 --> lib.cairo:20:7
trait abc {}
      ^^^

error[E2118]: The name `abc` is defined multiple times.
 --> lib.cairo:22:6
impl abc of abc;
     ^^^

error[E2012]: Not a trait.
 --> lib.cairo:22:13
impl abc of abc;
            ^^^