[PATCH,tests] Run to main before doing any tests in structs3.exp

[Luis Machado <lgustavo@codesourcery.com>]

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Hi,

On remote targets, we don't always start at the entry point. Thus, it is 
safer to get to main and do the tests from that point onwards.

This patch does exactly that, and fixes failures when testing this under 
some remote targets.

OK?


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2012-11-06  Luis Machado  <lgustavo@codesourcery.com>

	* gdb.base/structs3.exp: Run to main before doing any tests.

Index: gdb-trunk/gdb/testsuite/gdb.base/structs3.exp
===================================================================
--- gdb-trunk.orig/gdb/testsuite/gdb.base/structs3.exp	2012-11-02 17:29:00.801049370 -0200
+++ gdb-trunk/gdb/testsuite/gdb.base/structs3.exp	2012-11-02 17:29:57.401050043 -0200
@@ -23,6 +23,11 @@ if { [prepare_for_testing structs3.exp "
     return -1
 }
 
+if ![runto_main] {
+    untested "could not run to main"
+    return -1
+}
+
 set vhn "\\$\[0-9\]+"
 
 # Check the real contents.