Patch that makes panic = abort whin libcore is compiled with feature=trivial_panic

panic-as-abort.patch

diff --git a/src/libcore/panicking.rs b/src/libcore/panicking.rs
index 0b8a523..e7fd6e9 100644
--- a/src/libcore/panicking.rs
+++ b/src/libcore/panicking.rs
@@ -33,6 +33,7 @@
 use fmt;
 
 #[cold] #[inline(never)] // this is the slow path, always
+#[cfg(not(feature = "trivial_panic"))]
 #[lang="panic"]
 pub fn panic(expr_file_line: &(&'static str, &'static str, u32)) -> ! {
     // Use Arguments::new_v1 instead of format_args!("{}", expr) to potentially
@@ -45,7 +46,15 @@ pub fn panic(expr_file_line: &(&'static str, &'static str, u32)) -> ! {
     panic_fmt(fmt::Arguments::new_v1(&[expr], &[]), &(file, line))
 }
 
+#[cold] #[inline(never)] // this is the slow path, always
+#[cfg(feature = "trivial_panic")]
+#[lang="panic"]
+pub fn panic(_expr_file_line: &(&'static str, &'static str, u32)) -> ! {
+    unsafe { ::core::intrinsics::abort(); }
+}
+
 #[cold] #[inline(never)]
+#[cfg(not(feature = "trivial_panic"))]
 #[lang="panic_bounds_check"]
 fn panic_bounds_check(file_line: &(&'static str, u32),
                      index: usize, len: usize) -> ! {
@@ -54,6 +63,14 @@ fn panic_bounds_check(file_line: &(&'static str, u32),
 }
 
 #[cold] #[inline(never)]
+#[cfg(feature = "trivial_panic")]
+#[lang="panic_bounds_check"]
+fn panic_bounds_check(_file_line: &(&'static str, u32),
+                     _index: usize, _len: usize) -> ! {
+    unsafe { ::core::intrinsics::abort(); }
+}
+
+#[cold] #[inline(never)]
 pub fn panic_fmt(fmt: fmt::Arguments, file_line: &(&'static str, u32)) -> ! {
     #[allow(improper_ctypes)]
     extern {