[patch 1/3] make prompt_for_continue call throw_quit directly

[Sandra Loosemore <sandra at codesourcery dot com>]

This is the patch previously suggested by Pedro here:

https://sourceware.org/ml/gdb-patches/2015-09/msg00637.html

to fix a problem I ran into when testing on a remote Windows host via 
SSH without a terminal or job control.  As Pedro said, when typing 'q' 
in response to a pagination prompt, there's no possibility of a SIGINT 
so we can bypass the parts of quit() handling that are intended to 
intercept ^C instead.

I confirmed that this fixes the bogus quit message I observed previously 
on Windows host, and did full regression testing on Linux host for 
nios2-linux-gnu target.

OK to commit?

-Sandra

2015-12-18  Sandra Loosemore  <sandra@codesourcery.com>

	gdb/
	* utils.c (prompt_for_continue): Call throw_quit directly on 'q'.

diff --git a/gdb/utils.c b/gdb/utils.c
index 284fbbb..862a802 100644
--- a/gdb/utils.c
+++ b/gdb/utils.c
@@ -1868,7 +1868,7 @@ prompt_for_continue (void)
       while (*p == ' ' || *p == '\t')
 	++p;
       if (p[0] == 'q')
-	quit ();
+	throw_quit ("Quit");
       xfree (ignore);
     }
   immediate_quit--;