gdb/testsuite: tighten up some end-of-line patterns

Following on from the previous commit, I searched the testsuite for
places where we did:

  set eol "<some pattern>"

in most cases the <some pattern> could be replaced with "\r\n" though
in the stabs test I've switched to using the multi_line proc as that
seemed like a better choice.

In gdb.ada/info_types.exp I did need to add an extra use of $eol as
the previous pattern would match multiple newlines, and in this one
place we were actually expecting to match multiple newlines.  The
tighter pattern only matches a single newline, so we now need to be
explicit when multiple newlines are expected -- I think this is a good
thing.

All the tests are still passing for me after these changes.

Approved-By: Tom Tromey <tom@tromey.com>

gdb/testsuite/gdb.ada/catch_assert_if.exp

@@ -25,7 +25,7 @@ if {[gdb_compile_ada "${srcfile}" "${binfile}" executable [list debug additional
 
 clean_restart ${testfile}
 
-set eol "\[\r\n\]+"
+set eol "\r\n"
 set sp "\[ \t\]*"
 
 # Here is the scenario:

gdb/testsuite/gdb.ada/catch_ex.exp

@@ -29,7 +29,7 @@ clean_restart ${testfile}
 # the regular expressions below.
 set any_nb "\[0-9\]+"
 set any_addr "0x\[0-9a-zA-Z\]+"
-set eol "\[\r\n\]+"
+set eol "\r\n"
 set sp "\[ \t\]*"
 
 set info_break_header "Num${sp}Type${sp}Disp${sp}Enb${sp}Address${sp}What"

gdb/testsuite/gdb.ada/dyn_loc.exp

@@ -30,7 +30,7 @@ if {![runto "pack.adb:$bp_location"]} {
   return -1
 }
 
-set eol "\[\r\n\]+"
+set eol "\r\n"
 
 set test "info locals"
 gdb_test_multiple "$test" "$test" {

gdb/testsuite/gdb.ada/excep_handle.exp

@@ -27,7 +27,7 @@ clean_restart ${testfile}
 
 # Some global variables used to simplify the maintenance of some of
 # the regular expressions below.
-set eol "\[\r\n\]+"
+set eol "\r\n"
 set sp "\[ \t\]*"
 
 set when "when"

gdb/testsuite/gdb.ada/frame_args.exp

@@ -27,7 +27,7 @@ clean_restart ${testfile}
 
 set any_nb "\[0-9\]+"
 set any_addr "0x\[0-9a-zA-Z\]+"
-set eol "\[\r\n\]+"
+set eol "\r\n"
 set sp "\[ \t\]*"
 
 if {![runto break_me]} {

gdb/testsuite/gdb.ada/info_types.exp

@@ -26,8 +26,8 @@ if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } {
 # when the Ada language is being used.
 gdb_test "set lang ada" ""
 
-set eol "\[\r\n\]+"
+set eol "\r\n"
 
 gdb_test "info types new_integer_type" \
-         "All types matching regular expression \"new_integer_type\":${eol}File .*info_types.c:${eol}.*\tint"
+         "All types matching regular expression \"new_integer_type\":${eol}${eol}File .*info_types.c:${eol}.*\tint"
 

gdb/testsuite/gdb.base/info-target.exp

@@ -20,7 +20,7 @@ if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
     return -1
 }
 
-set eol "\[\r\n\]+"
+set eol "\r\n"
 
 # Check the output of "info target".  Note that we are not interested
 # in this case in checking the actual info, but rather to make sure that

gdb/testsuite/gdb.base/nofield.exp

@@ -20,7 +20,7 @@ if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debu
     return -1
 }
 
-set eol "\[\r\n\]+"
+set eol "\r\n"
 set sp "\[ \t\]*"
 
 clean_restart ${binfile}

gdb/testsuite/gdb.cp/local.exp

@@ -157,7 +157,7 @@ gdb_test "up" ".*main.*" "up from marker2"
 # Make sure that `Local' isn't in scope here; it's local to foobar.
 # setup_kfail "gdb/825"
 
-set eol "\[\t \]*\[\r\n\]+\[\t \]*"
+set eol "\[\t \]*\r\n\[\t \]*"
 gdb_test_multiple "ptype Local" "local out of scope" {
     -re "No symbol \"Local\" in current context.*${gdb_prompt} $" {
         pass "local out of scope"

gdb/testsuite/gdb.stabs/exclfwd.exp

@@ -35,19 +35,21 @@ if {![runto_main]} {
 
 get_debug_format
 
-set eol "\[ \t\]*\[\n\r\]+"
-
-gdb_test "ptype v1" "type = struct a {$eol
-    int x;$eol
-    int y;$eol
-}"
+gdb_test "ptype v1" \
+    [multi_line \
+	 "type = struct a {" \
+	 "    int x;" \
+	 "    int y;" \
+	 "}"]
 
 if {[test_debug_format "stabs"]} {
     setup_kfail "gdb/1602" *-*-*
 }
-gdb_test "ptype v2" "type = struct a {$eol
-    const char .c;$eol
-}"
+gdb_test "ptype v2" \
+    [multi_line \
+	 "type = struct a {" \
+	 "    const char .c;" \
+	 "}"]
 
 if {[test_debug_format "stabs"]} {
     setup_kfail "gdb/1603" *-*-*