[gcc r14-7305] gccrs: Only emit errors during type-bounds checking when required

[Arthur Cohen]

https://gcc.gnu.org/g:a313761b2f506093b8ed8134338b935f968ca380

commit r14-7305-ga313761b2f506093b8ed8134338b935f968ca380
Author: Philip Herron <herron.philip@googlemail.com>
Date:   Mon Feb 27 16:38:41 2023 +0000

    gccrs: Only emit errors during type-bounds checking when required
    
    Signed-off-by: Philip Herron <herron.philip@googlemail.com>
    
    gcc/rust/ChangeLog:
    
            * typecheck/rust-unify.cc (UnifyRules::go): respect the emit_errors flag

Diff:
---
 gcc/rust/typecheck/rust-unify.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/rust/typecheck/rust-unify.cc b/gcc/rust/typecheck/rust-unify.cc
index bdee48bdc42..dcd1783c29a 100644
--- a/gcc/rust/typecheck/rust-unify.cc
+++ b/gcc/rust/typecheck/rust-unify.cc
@@ -141,7 +141,7 @@ UnifyRules::go ()
   // check bounds
   if (ltype->num_specified_bounds () > 0)
     {
-      if (!ltype->bounds_compatible (*rtype, locus, true))
+      if (!ltype->bounds_compatible (*rtype, locus, emit_error))
 	{
 	  // already emitted an error
 	  emit_error = false;