Update nll stderr files

Author: oli-obk

src/test/ui/error-codes/E0017.nll.stderr

@@ -4,6 +4,12 @@ error[E0017]: references in constants may only refer to immutable values
 LL | const CR: &'static mut i32 = &mut C; //~ ERROR E0017
    |                              ^^^^^^ constants require immutable values
 
+error: cannot mutate statics in the initializer of another static
+  --> $DIR/E0017.rs:15:39
+   |
+LL | static STATIC_REF: &'static mut i32 = &mut X; //~ ERROR E0017
+   |                                       ^^^^^^
+
 error[E0017]: references in statics may only refer to immutable values
   --> $DIR/E0017.rs:15:39
    |
@@ -17,12 +23,12 @@ LL | static STATIC_REF: &'static mut i32 = &mut X; //~ ERROR E0017
    |                                       ^^^^^^ cannot borrow as mutable
 
 error[E0017]: references in statics may only refer to immutable values
-  --> $DIR/E0017.rs:17:38
+  --> $DIR/E0017.rs:18:38
    |
 LL | static CONST_REF: &'static mut i32 = &mut C; //~ ERROR E0017
    |                                      ^^^^^^ statics require immutable values
 
-error: aborting due to 4 previous errors
+error: aborting due to 5 previous errors
 
 Some errors occurred: E0017, E0596.
 For more information about an error, try `rustc --explain E0017`.

src/test/ui/error-codes/E0388.nll.stderr

@@ -4,6 +4,12 @@ error[E0017]: references in constants may only refer to immutable values
 LL | const CR: &'static mut i32 = &mut C; //~ ERROR E0017
    |                              ^^^^^^ constants require immutable values
 
+error: cannot mutate statics in the initializer of another static
+  --> $DIR/E0388.rs:15:39
+   |
+LL | static STATIC_REF: &'static mut i32 = &mut X; //~ ERROR E0017
+   |                                       ^^^^^^
+
 error[E0017]: references in statics may only refer to immutable values
   --> $DIR/E0388.rs:15:39
    |
@@ -17,12 +23,12 @@ LL | static STATIC_REF: &'static mut i32 = &mut X; //~ ERROR E0017
    |                                       ^^^^^^ cannot borrow as mutable
 
 error[E0017]: references in statics may only refer to immutable values
-  --> $DIR/E0388.rs:17:38
+  --> $DIR/E0388.rs:18:38
    |
 LL | static CONST_REF: &'static mut i32 = &mut C; //~ ERROR E0017
    |                                      ^^^^^^ statics require immutable values
 
-error: aborting due to 4 previous errors
+error: aborting due to 5 previous errors
 
 Some errors occurred: E0017, E0596.
 For more information about an error, try `rustc --explain E0017`.