Move std::panic unit tests to integration tests

Author: bjorn3

std/src/panic.rs

@@ -529,6 +529,3 @@ pub fn get_backtrace_style() -> Option<BacktraceStyle> {
         Err(new) => BacktraceStyle::from_u8(new),
     }
 }
-
-#[cfg(test)]
-mod tests;

std/src/panic/tests.rs renamed to std/tests/panic.rs

@@ -1,9 +1,9 @@
 #![allow(dead_code)]
 
-use crate::cell::RefCell;
-use crate::panic::{AssertUnwindSafe, UnwindSafe};
-use crate::rc::Rc;
-use crate::sync::{Arc, Mutex, RwLock};
+use std::cell::RefCell;
+use std::panic::{AssertUnwindSafe, UnwindSafe};
+use std::rc::Rc;
+use std::sync::{Arc, Mutex, RwLock};
 
 struct Foo {
     a: i32,