[PATCH] MI: Allow non-raw varobj evaluation

["Leszek Swirski via gdb-patches" <gdb-patches@sourceware.org>]

Make the MI variable object expression evaluation, with the
-var-evaluate-expression command, recursively call pretty printers, to
match the output of normal expression printing.

This is gated behind the -enable-pretty-printing command.

gdb/ChangeLog:

	* varobj.c (varobj_formatted_print_options): Allow recursive
	pretty printing if pretty printing is enabled.
---
 gdb/ChangeLog | 5 +++++
 gdb/varobj.c  | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 17a5a84b0c..7c53cf07b6 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2018-01-24  Leszek Swirski  <leszeks@google.com>
+
+	* varobj.c (varobj_formatted_print_options): Allow recursive
+	pretty printing if pretty printing is enabled.
+
 2018-01-24  Leszek Swirski  <leszeks@google.com>
 
 	* c-exp.y (lex_one_token, classify_name, yylex): Don't classify
diff --git a/gdb/varobj.c b/gdb/varobj.c
index b6a2d8f369..f23243f3b7 100644
--- a/gdb/varobj.c
+++ b/gdb/varobj.c
@@ -2274,7 +2274,7 @@ varobj_formatted_print_options (struct value_print_options *opts,
 {
   get_formatted_print_options (opts, format_code[(int) format]);
   opts->deref_ref = 0;
-  opts->raw = 1;
+  opts->raw = !pretty_printing;
 }
 
 std::string
-- 
2.16.0.rc1.238.g530d649a79-goog