Change init-large-type to use child thread

Author: aturon

src/test/run-pass/init-large-type.rs

@@ -14,12 +14,17 @@
 
 #![feature(intrinsics)]
 
+use std::thread::Thread;
+
 extern "rust-intrinsic" {
     pub fn init<T>() -> T;
 }
 
 const SIZE: usize = 1024 * 1024;
 
 fn main() {
-    let _memory: [u8; SIZE] = unsafe { init() };
+    // do the test in a new thread to avoid (spurious?) stack overflows
+    let _ = Thread::scoped(|| {
+        let _memory: [u8; SIZE] = unsafe { init() };
+    }).join();
 }