Use std::vector for traceframe_info::tvars

Straightforward change to get rid of a VEC.  We need to new/delete
traceframe_info instead of malloc/free it.  I found three places that
allocate a traceframe_info (ctf_traceframe_info, tfile_traceframe_info
and parse_traceframe_info) and only one that frees it
(free_traceframe_info).

gdb/ChangeLog:

	* tracepoint.h (struct traceframe_info) <tvars>: Change type to
	std::vector<int>.
	* tracepoint.c (free_traceframe_info): Deallocate with delete.
	(traceframe_info_start_tvar): Adjust to vector change.
	(parse_traceframe_info): Allocate with new.
	* ctf.c (ctf_traceframe_info): Allocate with new, adjust to
	vector change.
	* tracefile-tfile.c (build_traceframe_info): Adjust to vector
	change.
	tfile_traceframe_info): Allocate with new.
	* mi/mi-main.c (mi_cmd_trace_frame_collected): Adjust to vector
	change.

1 files changed, 1 insertions, 4 deletions

diff --git a/gdb/mi/mi-main.c b/gdb/mi/mi-main.c
index 5057f94..a94e329 100644
--- a/gdb/mi/mi-main.c
+++ b/gdb/mi/mi-main.c
@@ -2724,12 +2724,9 @@ mi_cmd_trace_frame_collected (const char *command, char **argv, int argc)
 
   /* Trace state variables.  */
   {
-    int tvar;
-    int i;
-
     ui_out_emit_list list_emitter (uiout, "tvars");
 
-    for (i = 0; VEC_iterate (int, tinfo->tvars, i, tvar); i++)
+    for (int tvar : tinfo->tvars)
       {
 	struct trace_state_variable *tsv;