mir-borrowck: Fix existing tests

Author: zilbuz

src/test/compile-fail/borrowck/borrowck-assign-comp.rs

@@ -22,7 +22,7 @@ fn a() {
     // immutable.  Otherwise the type of &_q.x (&isize) would be wrong.
     p.x = 5; //[ast]~ ERROR cannot assign to `p.x`
              //[mir]~^ ERROR cannot assign to `p.x` because it is borrowed (Ast)
-             //[mir]~| ERROR cannot assign to `p.0` because it is borrowed (Mir)
+             //[mir]~| ERROR cannot assign to `p.x` because it is borrowed (Mir)
     q.x;
 }
 
@@ -47,7 +47,7 @@ fn d() {
     let q = &p.y;
     p.y = 5; //[ast]~ ERROR cannot assign to `p.y`
              //[mir]~^ ERROR cannot assign to `p.y` because it is borrowed (Ast)
-             //[mir]~| ERROR cannot assign to `p.1` because it is borrowed (Mir)
+             //[mir]~| ERROR cannot assign to `p.y` because it is borrowed (Mir)
     *q;
 }
 

src/test/compile-fail/borrowck/borrowck-closures-mut-and-imm.rs

@@ -82,7 +82,7 @@ fn g() {
     let c1 = || get(&*x.f);
     *x.f = 5; //[ast]~ ERROR cannot assign to `*x.f`
               //[mir]~^ ERROR cannot assign to `*x.f` because it is borrowed (Ast)
-              //[mir]~| ERROR cannot assign to `(*(*x).0)` because it is borrowed (Mir)
+              //[mir]~| ERROR cannot assign to `(*x.f)` because it is borrowed (Mir)
 }
 
 fn h() {

src/test/compile-fail/borrowck/borrowck-union-borrow.rs

@@ -34,13 +34,13 @@ fn main() {
             let ra = &u.a;
             let rma = &mut u.a; //[ast]~ ERROR cannot borrow `u.a` as mutable because it is also borrowed as immutable
                                 //[mir]~^ ERROR cannot borrow `u.a` as mutable because it is also borrowed as immutable (Ast)
-                                //[mir]~| ERROR cannot borrow `u.0` as mutable because it is also borrowed as immutable (Mir)
+                                //[mir]~| ERROR cannot borrow `u.a` as mutable because it is also borrowed as immutable (Mir)
         }
         {
             let ra = &u.a;
             u.a = 1; //[ast]~ ERROR cannot assign to `u.a` because it is borrowed
                      //[mir]~^ ERROR cannot assign to `u.a` because it is borrowed (Ast)
-                     //[mir]~| ERROR cannot assign to `u.0` because it is borrowed (Mir)
+                     //[mir]~| ERROR cannot assign to `u.a` because it is borrowed (Mir)
         }
         // Imm borrow, other field
         {
@@ -68,25 +68,25 @@ fn main() {
             let rma = &mut u.a;
             let ra = &u.a; //[ast]~ ERROR cannot borrow `u.a` as immutable because it is also borrowed as mutable
                          //[mir]~^ ERROR cannot borrow `u.a` as immutable because it is also borrowed as mutable (Ast)
-                         //[mir]~| ERROR cannot borrow `u.0` as immutable because it is also borrowed as mutable (Mir)
+                         //[mir]~| ERROR cannot borrow `u.a` as immutable because it is also borrowed as mutable (Mir)
         }
         {
             let ra = &mut u.a;
             let a = u.a; //[ast]~ ERROR cannot use `u.a` because it was mutably borrowed
                          //[mir]~^ ERROR cannot use `u.a` because it was mutably borrowed (Ast)
-                         //[mir]~| ERROR cannot use `u.0` because it was mutably borrowed (Mir)
+                         //[mir]~| ERROR cannot use `u.a` because it was mutably borrowed (Mir)
         }
         {
             let rma = &mut u.a;
             let rma2 = &mut u.a; //[ast]~ ERROR cannot borrow `u.a` as mutable more than once at a time
                                  //[mir]~^ ERROR cannot borrow `u.a` as mutable more than once at a time (Ast)
-                                 //[mir]~| ERROR cannot borrow `u.0` as mutable more than once at a time (Mir)
+                                 //[mir]~| ERROR cannot borrow `u.a` as mutable more than once at a time (Mir)
         }
         {
             let rma = &mut u.a;
             u.a = 1; //[ast]~ ERROR cannot assign to `u.a` because it is borrowed
                      //[mir]~^ ERROR cannot assign to `u.a` because it is borrowed (Ast)
-                     //[mir]~| ERROR cannot assign to `u.0` because it is borrowed (Mir)
+                     //[mir]~| ERROR cannot assign to `u.a` because it is borrowed (Mir)
         }
         // Mut borrow, other field
         {