gdb: fix duplicate test names in gdb.base/break.exp

These test names are duplicated:

      2 PASS: gdb.base/break.exp: set breakpoint via non-integer convenience variable disallowed
      2 PASS: gdb.base/break.exp: set convenience variable $foo to 81.5

Wrap them with `with_test_prefix`. I've actually wrapped a bit more
tests that are related, I think it helps to give the test names a bit
more context.  The modified test names are:

    -PASS: gdb.base/break.exp: set convenience variable $foo to bp_location11
    -PASS: gdb.base/break.exp: set breakpoint via convenience variable
    -PASS: gdb.base/break.exp: set convenience variable $foo to 81.5
    -PASS: gdb.base/break.exp: set breakpoint via non-integer convenience variable disallowed
    +PASS: gdb.base/break.exp: set line breakpoint via convenience variable: set convenience variable $foo to bp_location11
    +PASS: gdb.base/break.exp: set line breakpoint via convenience variable: break $foo
    +PASS: gdb.base/break.exp: set line breakpoint via convenience variable: set convenience variable $foo to 81.5
    +PASS: gdb.base/break.exp: set line breakpoint via convenience variable: non-integer convenience variable disallowed

    -PASS: gdb.base/break.exp: set $l = 47
    -PASS: gdb.base/break.exp: break break.c:$l
    -PASS: gdb.base/break.exp: set convenience variable $foo to 81.5
    -PASS: gdb.base/break.exp: set breakpoint via non-integer convenience variable disallowed
    +PASS: gdb.base/break.exp: set line:file breakpoint via convenience variable: set $l = 47
    +PASS: gdb.base/break.exp: set line:file breakpoint via convenience variable: break break.c:$l
    +PASS: gdb.base/break.exp: set line:file breakpoint via convenience variable: set convenience variable $foo to 81.5
    +PASS: gdb.base/break.exp: set line:file breakpoint via convenience variable: non-integer convenience variable disallowed

gdb/testsuite/ChangeLog:

	* gdb.base/break.exp: Use with_test_prefix.

1 files changed, 39 insertions, 34 deletions

diff --git a/gdb/testsuite/gdb.base/break.exp b/gdb/testsuite/gdb.base/break.exp
index 67cc8a7..d2121c3 100644
--- a/gdb/testsuite/gdb.base/break.exp
+++ b/gdb/testsuite/gdb.base/break.exp
@@ -583,22 +583,25 @@ gdb_test "clear marker3" {Deleted breakpoints [0-9]+ [0-9]+.*}
 
 # Verify that a breakpoint can be set via a convenience variable.
 #
-gdb_test_no_output "set \$foo=$bp_location11" \
-    "set convenience variable \$foo to bp_location11"
 
-gdb_test "break \$foo" \
-    "Breakpoint (\[0-9\]*) at .*, line $bp_location11.*" \
-    "set breakpoint via convenience variable"
+with_test_prefix "set line breakpoint via convenience variable" {
+    gdb_test_no_output "set \$foo=$bp_location11" \
+	"set convenience variable \$foo to bp_location11"
 
-# Verify that GDB responds gracefully to an attempt to set a
-# breakpoint via a convenience variable whose type is not integer.
-#
-gdb_test_no_output "set \$foo=81.5" \
-    "set convenience variable \$foo to 81.5"
+    gdb_test "break \$foo" \
+	"Breakpoint (\[0-9\]*) at .*, line $bp_location11.*"
+
+    # Verify that GDB responds gracefully to an attempt to set a
+    # breakpoint via a convenience variable whose type is not integer.
+    #
 
-gdb_test "break \$foo" \
-    "Convenience variables used in line specs must have integer values.*" \
-    "set breakpoint via non-integer convenience variable disallowed"
+    gdb_test_no_output "set \$foo=81.5" \
+	"set convenience variable \$foo to 81.5"
+
+    gdb_test "break \$foo" \
+	"Convenience variables used in line specs must have integer values.*" \
+	"non-integer convenience variable disallowed"
+}
 
 # Verify that we can set and trigger a breakpoint in a user-called function.
 #
@@ -845,29 +848,31 @@ gdb_test_multiple "" $test {
 #
 # Test break via convenience variable with file name
 #
-set line [gdb_get_line_number "set breakpoint 1 here"]
-gdb_test_no_output "set \$l = $line"
-
-set line_actual "-1"
-set test "break ${srcfile}:\$l"
-gdb_test_multiple "$test" $test {
-    -re "Breakpoint $decimal at $hex: file .*break\\.c, line ($decimal)\\.\r\n$gdb_prompt $" {
-        # Save the actual line number on which the breakpoint was
-        # actually set. On some systems (Eg: Ubuntu 16.04 with GCC
-        # version 5.4.0), that line gets completely inlined, including
-        # the call to printf, and so we end up inserting the breakpoint
-        # on one of the following lines instead.
-        set line_actual $expect_out(1,string)
-        pass $test
-    }
-}
 
-gdb_test_no_output "set \$foo=81.5" \
-    "set convenience variable \$foo to 81.5"
-gdb_test "break $srcfile:\$foo" \
-    "Convenience variables used in line specs must have integer values.*" \
-    "set breakpoint via non-integer convenience variable disallowed"
+with_test_prefix "set line:file breakpoint via convenience variable" {
+    set line [gdb_get_line_number "set breakpoint 1 here"]
+    gdb_test_no_output "set \$l = $line"
+
+    set line_actual "-1"
+    set test "break ${srcfile}:\$l"
+    gdb_test_multiple "$test" $test {
+	-re "Breakpoint $decimal at $hex: file .*break\\.c, line ($decimal)\\.\r\n$gdb_prompt $" {
+	    # Save the actual line number on which the breakpoint was
+	    # actually set. On some systems (Eg: Ubuntu 16.04 with GCC
+	    # version 5.4.0), that line gets completely inlined, including
+	    # the call to printf, and so we end up inserting the breakpoint
+	    # on one of the following lines instead.
+	    set line_actual $expect_out(1,string)
+	    pass $test
+	}
+    }
 
+    gdb_test_no_output "set \$foo=81.5" \
+	"set convenience variable \$foo to 81.5"
+    gdb_test "break $srcfile:\$foo" \
+	"Convenience variables used in line specs must have integer values.*" \
+	"non-integer convenience variable disallowed"
+}
 
 #
 # Test that commands can be cleared without error.