Ignore lots and lots of std tests on emscripten

Author: brson

src/liballoc/arc.rs

@@ -1000,6 +1000,7 @@ mod tests {
     }
 
     #[test]
+    #[cfg_attr(target_os = "emscripten", ignore)]
     fn manually_share_arc() {
         let v = vec![1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
         let arc_v = Arc::new(v);

src/libcollections/linked_list.rs

@@ -1294,6 +1294,7 @@ mod tests {
     }
 
     #[test]
+    #[cfg_attr(target_os = "emscripten", ignore)]
     fn test_send() {
         let n = list_from(&[1, 2, 3]);
         thread::spawn(move || {

src/libcollectionstest/slice.rs

@@ -1116,6 +1116,7 @@ fn test_box_slice_clone() {
 }
 
 #[test]
+#[cfg_attr(target_os = "emscripten", ignore)]
 fn test_box_slice_clone_panics() {
     use std::sync::Arc;
     use std::sync::atomic::{AtomicUsize, Ordering};

src/libstd/env.rs

@@ -1033,6 +1033,7 @@ mod tests {
     }
 
     #[test]
+    #[cfg_attr(target_os = "emscripten", ignore)]
     fn test_var_big() {
         let mut s = "".to_string();
         let mut i = 0;
@@ -1046,6 +1047,7 @@ mod tests {
     }
 
     #[test]
+    #[cfg_attr(target_os = "emscripten", ignore)]
     fn test_self_exe_path() {
         let path = current_exe();
         assert!(path.is_ok());
@@ -1056,6 +1058,7 @@ mod tests {
     }
 
     #[test]
+    #[cfg_attr(target_os = "emscripten", ignore)]
     fn test_env_set_get_huge() {
         let n = make_rand_name();
         let s = repeat("x").take(10000).collect::<String>();