Make a try-blocks folder for all the try{} UI tests

src/test/ui/try-block/try-block-bad-lifetime.stderr

@@ -0,0 +1,50 @@
+error[E0597]: `my_string` does not live long enough
+  --> $DIR/try-block-bad-lifetime.rs:25:33
+   |
+LL |             let my_str: & str = & my_string;
+   |                                 ^^^^^^^^^^^ borrowed value does not live long enough
+...
+LL |         };
+   |         - `my_string` dropped here while still borrowed
+LL |         do_something_with(result);
+   |                           ------ borrow later used here
+
+error[E0506]: cannot assign to `i` because it is borrowed
+  --> $DIR/try-block-bad-lifetime.rs:39:13
+   |
+LL |         let k = &mut i;
+   |                 ------ borrow of `i` occurs here
+...
+LL |             i = 10; //~ ERROR cannot assign to `i` because it is borrowed
+   |             ^^^^^^ assignment to borrowed `i` occurs here
+LL |         };
+LL |         ::std::mem::drop(k); //~ ERROR use of moved value: `k`
+   |                          - borrow later used here
+
+error[E0382]: use of moved value: `k`
+  --> $DIR/try-block-bad-lifetime.rs:41:26
+   |
+LL |             Err(k) ?;
+   |                 - value moved here
+...
+LL |         ::std::mem::drop(k); //~ ERROR use of moved value: `k`
+   |                          ^ value used here after move
+   |
+   = note: move occurs because `k` has type `&mut i32`, which does not implement the `Copy` trait
+
+error[E0506]: cannot assign to `i` because it is borrowed
+  --> $DIR/try-block-bad-lifetime.rs:42:9
+   |
+LL |         let k = &mut i;
+   |                 ------ borrow of `i` occurs here
+...
+LL |         i = 40; //~ ERROR cannot assign to `i` because it is borrowed
+   |         ^^^^^^ assignment to borrowed `i` occurs here
+LL | 
+LL |         let i_ptr = if let Err(i_ptr) = j { i_ptr } else { panic ! ("") };
+   |                                         - borrow later used here
+
+error: aborting due to 4 previous errors
+
+Some errors occurred: E0382, E0506, E0597.
+For more information about an error, try `rustc --explain E0382`.

src/test/ui/try-block/try-block-bad-type.stderr

@@ -0,0 +1,52 @@
+error[E0277]: the trait bound `i32: std::convert::From<&str>` is not satisfied
+  --> $DIR/try-block-bad-type.rs:17:9
+   |
+LL |         Err("")?; //~ ERROR the trait bound `i32: std::convert::From<&str>` is not satisfied
+   |         ^^^^^^^^ the trait `std::convert::From<&str>` is not implemented for `i32`
+   |
+   = help: the following implementations were found:
+             <i32 as std::convert::From<bool>>
+             <i32 as std::convert::From<i16>>
+             <i32 as std::convert::From<i8>>
+             <i32 as std::convert::From<u16>>
+             <i32 as std::convert::From<u8>>
+   = note: required by `std::convert::From::from`
+
+error[E0271]: type mismatch resolving `<std::result::Result<i32, i32> as std::ops::Try>::Ok == &str`
+  --> $DIR/try-block-bad-type.rs:22:9
+   |
+LL |         "" //~ ERROR type mismatch
+   |         ^^ expected i32, found &str
+   |
+   = note: expected type `i32`
+              found type `&str`
+
+error[E0271]: type mismatch resolving `<std::result::Result<i32, i32> as std::ops::Try>::Ok == ()`
+  --> $DIR/try-block-bad-type.rs:25:39
+   |
+LL |     let res: Result<i32, i32> = try { }; //~ ERROR type mismatch
+   |                                       ^ expected i32, found ()
+   |
+   = note: expected type `i32`
+              found type `()`
+
+error[E0277]: the trait bound `(): std::ops::Try` is not satisfied
+  --> $DIR/try-block-bad-type.rs:27:23
+   |
+LL |     let res: () = try { }; //~ the trait bound `(): std::ops::Try` is not satisfied
+   |                       ^^^ the trait `std::ops::Try` is not implemented for `()`
+   |
+   = note: required by `std::ops::Try::from_ok`
+
+error[E0277]: the trait bound `i32: std::ops::Try` is not satisfied
+  --> $DIR/try-block-bad-type.rs:29:24
+   |
+LL |     let res: i32 = try { 5 }; //~ ERROR the trait bound `i32: std::ops::Try` is not satisfied
+   |                        ^^^^^ the trait `std::ops::Try` is not implemented for `i32`
+   |
+   = note: required by `std::ops::Try::from_ok`
+
+error: aborting due to 5 previous errors
+
+Some errors occurred: E0271, E0277.
+For more information about an error, try `rustc --explain E0271`.

src/test/ui/try-block/try-block-in-match.stderr

@@ -0,0 +1,8 @@
+error: expected expression, found reserved keyword `try`
+  --> $DIR/try-block-in-match.rs:16:11
+   |
+LL |     match try { false } { _ => {} } //~ ERROR expected expression, found reserved keyword `try`
+   |           ^^^ expected expression
+
+error: aborting due to previous error
+

src/test/ui/try-block/try-block-in-while.stderr

@@ -0,0 +1,8 @@
+error: expected expression, found reserved keyword `try`
+  --> $DIR/try-block-in-while.rs:16:11
+   |
+LL |     while try { false } {} //~ ERROR expected expression, found reserved keyword `try`
+   |           ^^^ expected expression
+
+error: aborting due to previous error
+

src/test/ui/try-block/try-block-maybe-bad-lifetime.stderr

@@ -0,0 +1,39 @@
+error[E0506]: cannot assign to `i` because it is borrowed
+  --> $DIR/try-block-maybe-bad-lifetime.rs:27:9
+   |
+LL |             &i
+   |             -- borrow of `i` occurs here
+LL |         };
+LL |         i = 0; //~ ERROR cannot assign to `i` because it is borrowed
+   |         ^^^^^ assignment to borrowed `i` occurs here
+LL |         let _ = i;
+LL |         do_something_with(x);
+   |                           - borrow later used here
+
+error[E0382]: borrow of moved value: `x`
+  --> $DIR/try-block-maybe-bad-lifetime.rs:38:24
+   |
+LL |             ::std::mem::drop(x);
+   |                              - value moved here
+LL |         };
+LL |         println!("{}", x); //~ ERROR borrow of moved value: `x`
+   |                        ^ value borrowed here after move
+   |
+   = note: move occurs because `x` has type `std::string::String`, which does not implement the `Copy` trait
+
+error[E0506]: cannot assign to `i` because it is borrowed
+  --> $DIR/try-block-maybe-bad-lifetime.rs:50:9
+   |
+LL |             j = &i;
+   |                 -- borrow of `i` occurs here
+LL |         };
+LL |         i = 0; //~ ERROR cannot assign to `i` because it is borrowed
+   |         ^^^^^ assignment to borrowed `i` occurs here
+LL |         let _ = i;
+LL |         do_something_with(j);
+   |                           - borrow later used here
+
+error: aborting due to 3 previous errors
+
+Some errors occurred: E0382, E0506.
+For more information about an error, try `rustc --explain E0382`.

src/test/ui/try-block/try-block-opt-init.stderr

@@ -0,0 +1,11 @@
+error[E0381]: borrow of possibly uninitialized variable: `cfg_res`
+  --> $DIR/try-block-opt-init.rs:25:5
+   |
+LL |     assert_eq!(cfg_res, 5); //~ ERROR borrow of possibly uninitialized variable: `cfg_res`
+   |     ^^^^^^^^^^^^^^^^^^^^^^^ use of possibly uninitialized `cfg_res`
+   |
+   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0381`.