py-linetable.c: Fix doc of LineTable.source_lines' return type

The ltpy_get_all_source_lines function, use to implement
the gdb.LineTable.source_lines method, returns a list:

    source_list = PyDict_Keys (source_dict);
    return source_list;

This patch fixes the function's documentation as well as its docstring
to say that it returns a list rather than a FrozenSet.

gdb/ChangeLog:

        * py-linetable.c (ltpy_get_all_source_lines): Adjust function
        documentation to say that it returns a list rather than
        a FrozenSet.
        (linetable_object_methods): Update the docstring of the
        "source_line" entry.

Tested on x86_64-linux.

1 files changed, 4 insertions, 4 deletions

diff --git a/gdb/python/py-linetable.c b/gdb/python/py-linetable.c
index 195a8b3..82b4cfc 100644
--- a/gdb/python/py-linetable.c
+++ b/gdb/python/py-linetable.c
@@ -227,8 +227,8 @@ ltpy_has_line (PyObject *self, PyObject *args)
   Py_RETURN_FALSE;
 }
 
-/* Implementation of gdb.LineTable.source_lines (self) -> FrozenSet.
-   Returns a Python FrozenSet that contains source line entries in the
+/* Implementation of gdb.LineTable.source_lines (self) -> List.
+   Returns a Python List that contains source line entries in the
    line table.  This function will just return the source lines
    without corresponding addresses.  */
 
@@ -488,8 +488,8 @@ Return executable locations for a given source line." },
     "has_line (lineno) -> Boolean\n\
 Return TRUE if this line has executable information, FALSE if not." },
   { "source_lines", ltpy_get_all_source_lines, METH_NOARGS,
-    "source_lines () -> FrozenSet\n\
-Return a frozen set of all executable source lines." },
+    "source_lines () -> List\n\
+Return a list of all executable source lines." },
   { "is_valid", ltpy_is_valid, METH_NOARGS,
     "is_valid () -> Boolean.\n\
 Return True if this Linetable is valid, False if not." },