core: move intrinsics.rs into intrinsics folder

Author: RalfJung

Diff for: library/core/src/intrinsics.rs renamed to library/core/src/intrinsics/mod.rs

@@ -11,12 +11,12 @@ LL |     *ptr = 0;
    |     ^^^^^^^^ accessing memory based on pointer with alignment 1, but alignment 4 is required
 
 error[E0080]: evaluation of constant value failed
-  --> $SRC_DIR/core/src/intrinsics.rs:LL:COL
+  --> $SRC_DIR/core/src/intrinsics/mod.rs:LL:COL
    |
    = note: accessing memory with alignment 1, but alignment 4 is required
    |
 note: inside `copy_nonoverlapping::<u32>`
-  --> $SRC_DIR/core/src/intrinsics.rs:LL:COL
+  --> $SRC_DIR/core/src/intrinsics/mod.rs:LL:COL
 note: inside `std::ptr::const_ptr::<impl *const u32>::copy_to_nonoverlapping`
   --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL
 note: inside `MISALIGNED_COPY`

Diff for: tests/ui/consts/const-eval/raw-pointer-ub.stderr

@@ -27,7 +27,7 @@ LL |     const_eval_select((), 42, 0xDEADBEEF);
    = help: the trait `FnOnce()` is not implemented for `{integer}`
    = note: wrap the `{integer}` in a closure with no arguments: `|| { /* code */ }`
 note: required by a bound in `const_eval_select`
-  --> $SRC_DIR/core/src/intrinsics.rs:LL:COL
+  --> $SRC_DIR/core/src/intrinsics/mod.rs:LL:COL
 
 error[E0277]: expected a `FnOnce()` closure, found `{integer}`
   --> $DIR/const-eval-select-bad.rs:10:31
@@ -40,7 +40,7 @@ LL |     const_eval_select((), 42, 0xDEADBEEF);
    = help: the trait `FnOnce()` is not implemented for `{integer}`
    = note: wrap the `{integer}` in a closure with no arguments: `|| { /* code */ }`
 note: required by a bound in `const_eval_select`
-  --> $SRC_DIR/core/src/intrinsics.rs:LL:COL
+  --> $SRC_DIR/core/src/intrinsics/mod.rs:LL:COL
 
 error: this argument must be a function item
   --> $DIR/const-eval-select-bad.rs:10:27
@@ -69,7 +69,7 @@ LL |     const_eval_select((1,), foo, bar);
    |     required by a bound introduced by this call
    |
 note: required by a bound in `const_eval_select`
-  --> $SRC_DIR/core/src/intrinsics.rs:LL:COL
+  --> $SRC_DIR/core/src/intrinsics/mod.rs:LL:COL
 
 error[E0631]: type mismatch in function arguments
   --> $DIR/const-eval-select-bad.rs:37:32
@@ -85,7 +85,7 @@ LL |     const_eval_select((true,), foo, baz);
    = note: expected function signature `fn(bool) -> _`
               found function signature `fn(i32) -> _`
 note: required by a bound in `const_eval_select`
-  --> $SRC_DIR/core/src/intrinsics.rs:LL:COL
+  --> $SRC_DIR/core/src/intrinsics/mod.rs:LL:COL
 help: consider wrapping the function in a closure
    |
 LL |     const_eval_select((true,), |arg0: bool| foo(/* i32 */), baz);