move error-pattern to inline annotation where possible

Author: RalfJung

tests/compile-fail/intrinsics/copy_overlapping.rs

@@ -1,4 +1,3 @@
-//error-pattern: copy_nonoverlapping called on overlapping ranges
 #![feature(intrinsics)]
 
 // Directly call intrinsic to avoid debug assertions in libstd
@@ -11,6 +10,6 @@ fn main() {
     unsafe {
         let a = data.as_mut_ptr();
         let b = a.wrapping_offset(1) as *mut _;
-        copy_nonoverlapping(a, b, 2);
+        copy_nonoverlapping(a, b, 2); //~ ERROR copy_nonoverlapping called on overlapping ranges
     }
 }

tests/compile-fail/intrinsics/copy_unaligned.rs

@@ -1,4 +1,3 @@
-//error-pattern: accessing memory with alignment 1, but alignment 2 is required
 #![feature(intrinsics)]
 
 // Directly call intrinsic to avoid debug assertions in libstd
@@ -10,5 +9,5 @@ fn main() {
     let mut data = [0u16; 8];
     let ptr = (&mut data[0] as *mut u16 as *mut u8).wrapping_add(1) as *mut u16;
     // Even copying 0 elements to something unaligned should error
-    unsafe { copy_nonoverlapping(&data[5], ptr, 0); }
+    unsafe { copy_nonoverlapping(&data[5], ptr, 0); } //~ ERROR accessing memory with alignment 1, but alignment 2 is required
 }