diff --git a/src/test/compile-fail/issue-2478.rs b/src/test/compile-fail/issue-2478.rs
new file mode 100644
index 00000000000..bab93b176b5
--- /dev/null
+++ b/src/test/compile-fail/issue-2478.rs
@@ -0,0 +1,6 @@
+// xfail-test
+fn foo() -> &a/int {
+    return &x;
+}
+const x: int = 5;
+fn main() {}
diff --git a/src/test/compile-fail/issue-3154.rs b/src/test/compile-fail/issue-3154.rs
new file mode 100644
index 00000000000..1208f80e4c6
--- /dev/null
+++ b/src/test/compile-fail/issue-3154.rs
@@ -0,0 +1,11 @@
+struct thing<Q> {
+    x: &Q
+}
+
+fn thing<Q>(x: &Q) -> thing<Q> {
+    thing{ x: x } //~ ERROR cannot infer an appropriate lifetime
+}
+
+fn main() {
+    thing(&());
+}
\ No newline at end of file
diff --git a/src/test/compile-fail/issue-3243.rs b/src/test/compile-fail/issue-3243.rs
new file mode 100644
index 00000000000..a2ad89c86ba
--- /dev/null
+++ b/src/test/compile-fail/issue-3243.rs
@@ -0,0 +1,11 @@
+// xfail-test
+fn function() -> &[mut int] {
+    let mut x: &static/[mut int] = &[mut 1,2,3];
+    x[0] = 12345;
+    x //~ ERROR bad
+}
+
+fn main() {
+    let x = function();
+    error!("%?", x);
+}
\ No newline at end of file
diff --git a/src/test/compile-fail/issue-3296.rs b/src/test/compile-fail/issue-3296.rs
new file mode 100644
index 00000000000..35b74e9a4d3
--- /dev/null
+++ b/src/test/compile-fail/issue-3296.rs
@@ -0,0 +1,12 @@
+use std;
+
+struct Deserializer : std::serialization::deserializer{ //~ ERROR obsolete syntax: class traits
+    x: ()
+}
+
+type foo = {a: (),};
+
+fn deserialize_foo<__D: std::serialization::deserializer>(&&__d: __D) {
+}
+
+fn main() { let des = Deserializer(); let foo = deserialize_foo(des); }
diff --git a/src/test/compile-fail/issue-3311.rs b/src/test/compile-fail/issue-3311.rs
new file mode 100644
index 00000000000..3f0c7bcfdb3
--- /dev/null
+++ b/src/test/compile-fail/issue-3311.rs
@@ -0,0 +1,21 @@
+#[legacy_mode]
+struct Foo {
+    s: &str,
+    u: ~()
+}
+
+impl Foo {
+    fn get_s(&self) -> &self/str {
+        self.s
+    }
+}
+
+fn bar(s: &str, f: fn(Option<Foo>)) {
+    f(Some(Foo {s: s, u: ~()}));
+}
+
+fn main() {
+    do bar(~"testing") |opt| {
+        io::println(option::unwrap(opt).get_s()); //~ ERROR illegal borrow:
+    };
+}
diff --git a/src/test/compile-fail/issue-3680.rs b/src/test/compile-fail/issue-3680.rs
new file mode 100644
index 00000000000..e2f40364b61
--- /dev/null
+++ b/src/test/compile-fail/issue-3680.rs
@@ -0,0 +1,6 @@
+// xfail-test
+fn f() {
+    match None {
+            Err(_) => () //~ ERROR expected `core::result
+    }
+}
diff --git a/src/test/compile-fail/issue-3702-2.rs b/src/test/compile-fail/issue-3702-2.rs
new file mode 100644
index 00000000000..cf44a6cbe9a
--- /dev/null
+++ b/src/test/compile-fail/issue-3702-2.rs
@@ -0,0 +1,13 @@
+trait Add {
+    fn to_int(&self) -> int;
+    fn add_dynamic(&self, other: &Add) -> int;
+}
+
+impl int: Add {
+    fn to_int(&self) -> int { *self }
+    fn add_dynamic(&self, other: &Add) -> int {
+        self.to_int() + other.to_int() //~ ERROR multiple applicable methods in scope
+    }
+}
+
+fn main() { }
diff --git a/src/test/compile-fail/issue-3763 b/src/test/compile-fail/issue-3763
new file mode 100755
index 00000000000..4415d099181
Binary files /dev/null and b/src/test/compile-fail/issue-3763 differ
diff --git a/src/test/compile-fail/issue-3763.rs b/src/test/compile-fail/issue-3763.rs
new file mode 100644
index 00000000000..46e47081f3a
--- /dev/null
+++ b/src/test/compile-fail/issue-3763.rs
@@ -0,0 +1,17 @@
+// xfail-test
+mod my_mod {
+    pub struct MyStruct {
+        priv priv_field: int
+    }
+    pub fn MyStruct () -> MyStruct {
+        MyStruct {priv_field: 4}
+    }
+}
+
+fn main() {
+    let my_struct = my_mod::MyStruct();
+    let _woohoo = (&my_struct).priv_field; // compiles but shouldn't
+    let _woohoo = (~my_struct).priv_field; // ditto
+    let _woohoo = (@my_struct).priv_field; // ditto
+   // let nope = my_struct.priv_field;       // compile error as expected
+}
diff --git a/src/test/run-pass/issue-3026.rs b/src/test/run-pass/issue-3026.rs
new file mode 100644
index 00000000000..8345aac5a0e
--- /dev/null
+++ b/src/test/run-pass/issue-3026.rs
@@ -0,0 +1,9 @@
+extern mod std;
+use std::map::HashMap;
+use std::map;
+
+fn main() {
+    let buggy_map :HashMap<uint, &uint> = HashMap::<uint, &uint>();
+    let x = ~1;
+    buggy_map.insert(42, x);
+}
diff --git a/src/test/run-pass/issue-3052.rs b/src/test/run-pass/issue-3052.rs
new file mode 100644
index 00000000000..52c3dfb984a
--- /dev/null
+++ b/src/test/run-pass/issue-3052.rs
@@ -0,0 +1,11 @@
+use option::*;
+
+type Connection = fn@(~[u8]);
+
+fn f() -> Option<Connection> {
+    let mock_connection: Connection = fn@(_data: ~[u8]) { };
+    Some(mock_connection)
+}
+
+fn main() {
+}
diff --git a/src/test/run-pass/issue-3109.rs b/src/test/run-pass/issue-3109.rs
new file mode 100644
index 00000000000..5bf16ef5097
--- /dev/null
+++ b/src/test/run-pass/issue-3109.rs
@@ -0,0 +1,3 @@
+fn main() {
+    log(error, ("hi there!", "you"));
+}
diff --git a/src/test/run-pass/issue-3389.rs b/src/test/run-pass/issue-3389.rs
new file mode 100644
index 00000000000..57f8e71899d
--- /dev/null
+++ b/src/test/run-pass/issue-3389.rs
@@ -0,0 +1,22 @@
+struct trie_node {
+    mut content: ~[~str],
+    mut children: ~[trie_node],
+}
+
+fn print_str_vector(vector: ~[~str]) {
+    for vector.each() |string| {
+        io::println(*string);
+    }
+}
+
+fn main() {
+    let node: trie_node = trie_node {
+        content: ~[],
+        children: ~[]
+    };
+    let v = ~[~"123", ~"abc"];
+    node.content = ~[~"123", ~"abc"];
+    print_str_vector(v);
+    print_str_vector(copy node.content);
+
+}
diff --git a/src/test/run-pass/issue-3424.rs b/src/test/run-pass/issue-3424.rs
new file mode 100644
index 00000000000..bfc683fd9ae
--- /dev/null
+++ b/src/test/run-pass/issue-3424.rs
@@ -0,0 +1,16 @@
+// rustc --test ignores2.rs && ./ignores2
+extern mod std;
+use path::{Path};
+
+type rsrc_loader = fn~ (path: &Path) -> result::Result<~str, ~str>;
+
+#[test]
+fn tester()
+{
+    let loader: rsrc_loader = |_path| {result::Ok(~"more blah")};
+
+    let path = path::from_str("blah");
+    assert loader(&path).is_ok();
+}
+
+fn main() {}
diff --git a/src/test/run-pass/issue-3461.rs b/src/test/run-pass/issue-3461.rs
new file mode 100644
index 00000000000..30a865d2c00
--- /dev/null
+++ b/src/test/run-pass/issue-3461.rs
@@ -0,0 +1,7 @@
+// xfail-test
+fn main() {
+
+    fn foo() { }
+    
+    let bar: ~fn() = ~foo;
+}
\ No newline at end of file
diff --git a/src/test/run-pass/issue-3480.rs b/src/test/run-pass/issue-3480.rs
new file mode 100644
index 00000000000..1781b6bbf6e
--- /dev/null
+++ b/src/test/run-pass/issue-3480.rs
@@ -0,0 +1,17 @@
+// xfail-test
+type IMap<K: Copy, V: Copy> = ~[(K, V)];
+
+trait ImmutableMap<K: Copy, V: Copy>
+{
+    pure fn contains_key(key: K) -> bool;
+}
+
+impl<K: Copy, V: Copy> IMap<K, V> : ImmutableMap<K, V>
+{
+    pure fn contains_key(key: K) -> bool
+    {
+        vec::find(self, |e| {e.first() == key}).is_some()
+    }
+}
+
+fn main() {}
\ No newline at end of file
diff --git a/src/test/run-pass/issue-3500.rs b/src/test/run-pass/issue-3500.rs
new file mode 100644
index 00000000000..f42c5f193ce
--- /dev/null
+++ b/src/test/run-pass/issue-3500.rs
@@ -0,0 +1,7 @@
+fn main() {
+    let x = &Some(1);
+    match x {
+        &Some(_) => (),
+        &None => (),
+    }
+}
diff --git a/src/test/run-pass/issue-3559 b/src/test/run-pass/issue-3559
new file mode 100755
index 00000000000..406e055884a
Binary files /dev/null and b/src/test/run-pass/issue-3559 differ
diff --git a/src/test/run-pass/issue-3559.rs b/src/test/run-pass/issue-3559.rs
new file mode 100644
index 00000000000..25629961276
--- /dev/null
+++ b/src/test/run-pass/issue-3559.rs
@@ -0,0 +1,26 @@
+// rustc --test map_to_str.rs && ./map_to_str
+extern mod std;
+use io::{WriterUtil};
+use std::map::*;
+
+#[cfg(test)]
+fn check_strs(actual: &str, expected: &str) -> bool
+{
+    if actual != expected
+    {
+        io::stderr().write_line(fmt!("Found %s, but expected %s", actual, expected));
+        return false;
+    }
+    return true;
+}
+
+#[test]
+fn tester()
+{
+    let table = HashMap();
+    table.insert(@~"one", 1);
+    table.insert(@~"two", 2);
+    assert check_strs(table.to_str(), ~"xxx");   // not sure what expected should be
+}
+
+fn main() {}
diff --git a/src/test/run-pass/issue-3563.rs b/src/test/run-pass/issue-3563.rs
new file mode 100644
index 00000000000..e05e62c60e1
--- /dev/null
+++ b/src/test/run-pass/issue-3563.rs
@@ -0,0 +1,6 @@
+// xfail-test
+trait A {
+  fn a(&self) {
+    || self.b()
+  }
+}
diff --git a/src/test/run-pass/issue-3574.rs b/src/test/run-pass/issue-3574.rs
new file mode 100644
index 00000000000..236ee1b6407
--- /dev/null
+++ b/src/test/run-pass/issue-3574.rs
@@ -0,0 +1,18 @@
+// xfail-test
+// rustc --test match_borrowed_str.rs.rs && ./match_borrowed_str.rs
+extern mod std;
+
+fn compare(x: &str, y: &str) -> bool
+{
+    match x
+    {
+        "foo" => y == "foo",
+        _ => y == "bar",
+    }
+}
+
+#[test]
+fn tester()
+{
+    assert compare("foo", "foo");
+}
diff --git a/src/test/run-pass/issue-3702 b/src/test/run-pass/issue-3702
new file mode 100755
index 00000000000..3f39ee31442
Binary files /dev/null and b/src/test/run-pass/issue-3702 differ
diff --git a/src/test/run-pass/issue-3702.rs b/src/test/run-pass/issue-3702.rs
new file mode 100644
index 00000000000..e790b97d618
--- /dev/null
+++ b/src/test/run-pass/issue-3702.rs
@@ -0,0 +1,12 @@
+use io::println;
+
+fn main() {
+  trait Text {
+    fn to_str(&self) -> ~str;
+  }
+
+  fn to_string(t: Text) {
+    println(t.to_str());
+  }
+
+}
diff --git a/src/test/run-pass/issue-3794.rs b/src/test/run-pass/issue-3794.rs
new file mode 100644
index 00000000000..3669929e139
--- /dev/null
+++ b/src/test/run-pass/issue-3794.rs
@@ -0,0 +1,30 @@
+// xfail-test
+trait T {
+    fn print(&self);
+}
+
+struct S {
+    s: int,
+}
+
+impl S: T {
+    fn print(&self) {
+        io::println(fmt!("%?", self));
+    }
+}
+
+fn print_t(t: &T) {
+    t.print();
+}
+
+fn print_s(s: &S) {
+    s.print();
+}
+
+fn main() {
+    let s: @S = @S { s: 5 };
+    print_s(s);
+    let t: @T = s as @T;
+    print_t(t);
+
+}
diff --git a/src/test/run-pass/issue-3860.rs b/src/test/run-pass/issue-3860.rs
new file mode 100644
index 00000000000..da6d6aeda37
--- /dev/null
+++ b/src/test/run-pass/issue-3860.rs
@@ -0,0 +1,19 @@
+// xfail-test
+struct Foo { x: int }
+
+impl Foo {
+    fn stuff(&mut self) -> &self/mut Foo {
+        return self;
+    }
+}
+
+fn main() {
+    let mut x = @mut Foo { x: 3 };
+    x.stuff(); // error: internal compiler error: no enclosing scope with id 49
+    // storing the result removes the error, so replacing the above
+    // with the following, works:
+    // let _y = x.stuff()
+
+    // also making 'stuff()' not return anything fixes it
+    // I guess the "dangling &ptr" cuases issues?
+}
diff --git a/src/test/run-pass/issue-4016 b/src/test/run-pass/issue-4016
new file mode 100755
index 00000000000..ff979383c10
Binary files /dev/null and b/src/test/run-pass/issue-4016 differ
diff --git a/src/test/run-pass/issue-4016.rs b/src/test/run-pass/issue-4016.rs
new file mode 100644
index 00000000000..1e998b1f42e
--- /dev/null
+++ b/src/test/run-pass/issue-4016.rs
@@ -0,0 +1,17 @@
+// xfail-test
+extern mod std;
+
+use send_map::linear;
+use std::json;
+use std::serialization::{Deserializable, deserialize};
+
+trait JD : Deserializable<json::Deserializer> { }
+//type JD = Deserializable<json::Deserializer>;
+
+fn exec<T: JD>() {
+    let doc = result::unwrap(json::from_str(""));
+    let _v: T = deserialize(&json::Deserializer(move doc));
+    fail
+}
+
+fn main() {}
diff --git a/src/test/run-pass/issue-4092 b/src/test/run-pass/issue-4092
new file mode 100755
index 00000000000..761b6ab4686
Binary files /dev/null and b/src/test/run-pass/issue-4092 differ
diff --git a/src/test/run-pass/issue-4092.rs b/src/test/run-pass/issue-4092.rs
new file mode 100644
index 00000000000..8198abb8ddc
--- /dev/null
+++ b/src/test/run-pass/issue-4092.rs
@@ -0,0 +1,6 @@
+extern mod std;
+
+fn main() {
+    let x = std::map::HashMap();
+    x.insert((@"abc", 0), 0);
+}