remove type coercion from array values to references

 * Implements #3768. This is a sweeping breaking change that requires
   many (trivial) edits to Zig source code. Array values no longer
   coerced to slices; however one may use `&` to obtain a reference to
   an array value, which may then be coerced to a slice.

 * Adds `IrInstruction::dump`, for debugging purposes. It's useful to
   call to inspect the instruction when debugging Zig IR.

 * Fixes bugs with result location semantics. See the new behavior test
   cases, and compile error test cases.

 * Fixes bugs with `@typeInfo` not properly resolving const values.

 * Behavior tests are passing but std lib tests are not yet. There
   is more work to do before merging this branch.

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/std/crypto/sha3.zig b/lib/std/crypto/sha3.zig
index d417ef07e2..d7b2fbe256 100644
--- a/lib/std/crypto/sha3.zig
+++ b/lib/std/crypto/sha3.zig
@@ -229,7 +229,7 @@ test "sha3-256 aligned final" {
     var out: [Sha3_256.digest_length]u8 = undefined;
 
     var h = Sha3_256.init();
-    h.update(block);
+    h.update(&block);
     h.final(out[0..]);
 }
 
@@ -300,6 +300,6 @@ test "sha3-512 aligned final" {
     var out: [Sha3_512.digest_length]u8 = undefined;
 
     var h = Sha3_512.init();
-    h.update(block);
+    h.update(&block);
     h.final(out[0..]);
 }