[gcc r12-8674] libgccjit.h: Uncomment macro definition for testing gcc_jit_context_new_bitcast support

[David Malcolm <dmalcolm@gcc.gnu.org>]

https://gcc.gnu.org/g:92f2582f3ec7b833a5f6b70ef05af4c7e511b860

commit r12-8674-g92f2582f3ec7b833a5f6b70ef05af4c7e511b860
Author: Vibhav Pant <vibhavp@gmail.com>
Date:   Tue Aug 9 19:06:43 2022 -0400

    libgccjit.h: Uncomment macro definition for testing gcc_jit_context_new_bitcast support
    
    (cherry-picked from r13-2004-g9385cd9c74cf66)
    
    The macro definition for LIBGCCJIT_HAVE_gcc_jit_context_new_bitcast
    was earlier located in the documentation comment for
    gcc_jit_context_new_bitcast, making it unavailable to code that
    consumed libgccjit.h. This commit moves the definition out of the
    comment, making it effective.
    
    gcc/jit/ChangeLog:
            * libgccjit.h (LIBGCCJIT_HAVE_gcc_jit_context_new_bitcast): Move
            definition out of comment.
    
    Signed-off-by: David Malcolm <dmalcolm@redhat.com>

Diff:
---
 gcc/jit/libgccjit.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/jit/libgccjit.h b/gcc/jit/libgccjit.h
index 062f06d691a..b3c389e93f6 100644
--- a/gcc/jit/libgccjit.h
+++ b/gcc/jit/libgccjit.h
@@ -1252,10 +1252,10 @@ gcc_jit_context_new_cast (gcc_jit_context *ctxt,
 			  gcc_jit_rvalue *rvalue,
 			  gcc_jit_type *type);
 
-/* Reinterpret a value as another type.
-
 #define LIBGCCJIT_HAVE_gcc_jit_context_new_bitcast
 
+/* Reinterpret a value as another type.
+
    The types must be of the same size.
 
    This API entrypoint was added in LIBGCCJIT_ABI_21; you can test for its