[PATCH 3/6] gdb_test_multiple: Fix user code argument processing

[Pedro Alves <palves@redhat.com>]

While teaching gdb_test_multiple to forward "-i" to gdb_expect, I
found that with:

      gdb_test_multiple (...) {
        -i $some_variable -re "..." {}
      }

$some_variable was not getting expanded in the gdb_test_multiple
caller's scope.  This is a bug inside gdb_test_multiple.  When
processing an argument in passed in user code, it was appending the
original argument literally, instead of appending the uplist'ed
argument.

gdb/testsuite/ChangeLog:
2015-02-23  Pedro Alves  <palves@redhat.com>

        * lib/gdb.exp (gdb_test_multiple): When processing an argument,
	append the substituted item, not the original item.
---
 gdb/testsuite/lib/gdb.exp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index bbc657c..8e12ea4 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -720,7 +720,7 @@ proc gdb_test_multiple { command message user_code } {
 	}
 	if { $expecting_arg } {
 	    set expecting_arg 0
-	    lappend processed_code $item
+	    lappend processed_code $subst_item
 	    continue
 	}
 	if { $expecting_action } {
-- 
1.9.3