forgotten tests for #3217, #2977, #3067

Author: nikomatsakis

src/test/compile-fail/borrowck-borrowed-uniq-rvalue-2.rs

@@ -0,0 +1,9 @@
+struct defer {
+    x: &[&str];
+    new(x: &[&str]) { self.x = x; }
+    drop { #error["%?", self.x]; }
+}
+
+fn main() {
+    let _x = defer(~["Goodbye", "world!"]); //~ ERROR illegal borrow
+}

src/test/compile-fail/borrowck-borrowed-uniq-rvalue.rs

@@ -0,0 +1,13 @@
+//buggy.rs
+use std;
+import std::map::hashmap;
+import std::map;
+
+fn main() {
+    let buggy_map :hashmap<uint, &uint> = hashmap::<uint, &uint>(uint::hash, uint::eq);
+    buggy_map.insert(42, ~1); //~ ERROR illegal borrow
+    
+    // but it is ok if we use a temporary
+    let tmp = ~2;
+    buggy_map.insert(43, tmp);
+}

src/test/compile-fail/borrowck-ref-into-rvalue.rs

@@ -0,0 +1,11 @@
+fn main() {
+    let msg;
+    match some(~"Hello") { //~ ERROR illegal borrow
+        some(ref m) => {
+            msg = m;
+        },  
+        none => { fail }
+    }   
+    io::println(*msg);
+}
+