Test fixes and rebase conflicts from rollups

PRs closed as part of this:

Closes #12212 r=alexcrichton
Closes #12215 r=brson
Closes #12246 r=pcwalton
Closes #12247 r=cmr
Closes #12251 r=brson
Closes #12255 r=alexcrichton
Closes #12257 r=alexcrichton
Closes #12258 r=huonw
Closes #12259 r=huonw
Closes #12263 r=kballard
Closes #12269 r=alexcrichton

src/librustuv/idle.rs

@@ -117,7 +117,10 @@ mod test {
                     match *slot.get() {
                         (ref mut task, ref mut val) => {
                             *val = n;
-                            task.take_unwrap()
+                            match task.take() {
+                                Some(t) => t,
+                                None => return
+                            }
                         }
                     }
                 }

src/test/compile-fail/issue-8727.rs

@@ -14,7 +14,11 @@
 
 struct Data(~Option<Data>);
 
-fn generic<T>( _ : ~[(Data,T)] ) {let rec : ~[(Data,(bool,T))] = ~[]; generic( rec ); } //~ ERROR overly deep expansion of inlined function
+fn generic<T>( _ : ~[(Data,T)] ) {
+    //~^ ERROR overly deep expansion of inlined function
+    let rec : ~[(Data,(bool,T))] = ~[];
+    generic( rec );
+}
 
 
 fn main () {

src/test/run-pass/issue-8860.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// ignore-fast
+
 extern mod green;
 
 static mut DROP: int = 0i;