[PATCH] diagnostics: Delete config pointer before overwriting it.

[Mikael Morin via Gcc-patches]

Hello,

this is a fix for a small memory leak in the fortran frontend.
Tested on x86_64-pc-linux-gnu, nothing stands out besides the
apparently well-known guality instability.
OK for master ?

-- >8 --

Delete m_client_data_hooks before it is reassigned in
tree_diagnostics_defaults.  This fixes a small memory leak in the fortran
frontend, which restores the diagnostics configurations to their default
values with a call to tree_diagnostics_defaults at the end of the main parse
hook.

gcc/ChangeLog:

        * tree-diagnostic.cc (tree_diagnostics_defaults): Delete allocated
        pointer before overwriting it.
---
 gcc/tree-diagnostic.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gcc/tree-diagnostic.cc b/gcc/tree-diagnostic.cc
index 731e3559cd8..d2f6637b6d9 100644
--- a/gcc/tree-diagnostic.cc
+++ b/gcc/tree-diagnostic.cc
@@ -377,5 +377,6 @@ tree_diagnostics_defaults (diagnostic_context *context)
   context->print_path = default_tree_diagnostic_path_printer;
   context->make_json_for_path = default_tree_make_json_for_path;
   context->set_locations_cb = set_inlining_locations;
+  delete context->m_client_data_hooks;
   context->m_client_data_hooks = make_compiler_data_hooks ();
 }
-- 
2.40.1