tests: fix fallout from changed error messages.

Author: eddyb

src/test/compile-fail/const-block-non-item-statement.rs

@@ -8,18 +8,18 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-static A: usize = { 1us; 2 };
+const A: usize = { 1us; 2 };
 //~^ ERROR: blocks in constants are limited to items and tail expressions
 
-static B: usize = { { } 2 };
+const B: usize = { { } 2 };
 //~^ ERROR: blocks in constants are limited to items and tail expressions
 
 macro_rules! foo {
     () => (()) //~ ERROR: blocks in constants are limited to items and tail expressions
 }
-static C: usize = { foo!(); 2 };
+const C: usize = { foo!(); 2 };
 
-static D: usize = { let x = 4us; 2 };
+const D: usize = { let x = 4us; 2 };
 //~^ ERROR: blocks in constants are limited to items and tail expressions
 
 pub fn main() {

src/test/compile-fail/issue-16538.rs

@@ -20,6 +20,7 @@ mod Y {
 
 static foo: *const Y::X = Y::foo(Y::x as *const Y::X);
 //~^ ERROR cannot refer to other statics by value
-//~| ERROR: the trait `core::marker::Sync` is not implemented for the type
+//~| ERROR the trait `core::marker::Sync` is not implemented for the type
+//~| ERROR function calls in statics are limited to struct and enum constructors
 
 fn main() {}

src/test/compile-fail/issue-18118.rs

@@ -9,7 +9,7 @@
 // except according to those terms.
 
 pub fn main() {
-    static z: &'static isize = {
+    const z: &'static isize = {
         let p = 3;
         //~^ ERROR blocks in constants are limited to items and tail expressions
         &p

src/test/compile-fail/issue-7364.rs

@@ -15,8 +15,8 @@ use std::cell::RefCell;
 // Regresion test for issue 7364
 static boxed: Box<RefCell<isize>> = box RefCell::new(0);
 //~^ ERROR allocations are not allowed in statics
-//~| ERROR: the trait `core::marker::Sync` is not implemented for the type
-//~| ERROR: the trait `core::marker::Sync` is not implemented for the type
-//~^^^^^ ERROR function calls in constants are limited to struct and enum constructors
+//~| ERROR the trait `core::marker::Sync` is not implemented for the type
+//~| ERROR the trait `core::marker::Sync` is not implemented for the type
+//~| ERROR function calls in statics are limited to struct and enum constructors
 
 fn main() { }

src/test/compile-fail/static-vec-repeat-not-constant.rs

@@ -11,6 +11,6 @@
 fn foo() -> isize { 23 }
 
 static a: [isize; 2] = [foo(); 2];
-//~^ ERROR: function calls in constants are limited to struct and enum constructors
+//~^ ERROR: function calls in statics are limited to struct and enum constructors
 
 fn main() {}