[gdb/contrib] Add more separators in spellcheck.sh

Add two more separators in spellcheck.sh: colon and comma.

Doing so triggers the "inbetween->between" rule, which gives an incorrect
result.  Override this with "inbetween->between, in between, in-between" [1],
in a new file gdb/contrib/common-misspellings.txt.

Fix the following common misspellings:
...
everytime -> every time
sucess -> success
thru -> through
transfered -> transferred
inbetween -> between, in between, in-between
...

Verified with spellcheck.sh.  Tested on x86_64-linux.

[1] https://www.grammarly.com/blog/commonly-confused-words/in-between-or-inbetween/

gdb/cli/cli-interp.c

@@ -228,7 +228,7 @@ cli_interp::exec (const char *command_str)
      interpreter which has a new ui_file for gdb_stdout, use that one
      instead of the default.
 
-     It is important that it gets reset everytime, since the user
+     It is important that it gets reset every time, since the user
      could set gdb to use a different interpreter.  */
   ui_file *old_stream = m_cli_uiout->set_stream (gdb_stdout);
   SCOPE_EXIT { m_cli_uiout->set_stream (old_stream); };

gdb/contrib/common-misspellings.txt

@@ -0,0 +1,17 @@
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Common spelling mistakes.
+
+inbetween->between, in between, in-between

gdb/contrib/spellcheck.sh

@@ -25,19 +25,24 @@ url=https://en.wikipedia.org/wiki/Wikipedia:Lists_of_common_misspellings/For_mac
 cache_dir=$scriptdir/../../.git
 cache_file=wikipedia-common-misspellings.txt
 dictionary=$cache_dir/$cache_file
+local_dictionary=$scriptdir/common-misspellings.txt
 
-# Separators: space, slash, tab.
+# Separators: space, slash, tab, colon, comma.
 declare -a grep_separators
 grep_separators=(
     " "
     "/"
     "	"
+    ":"
+    ","
 )
 declare -a sed_separators
 sed_separators=(
     " "
     "/"
     "\t"
+    ":"
+    ","
 )
 
 join ()
@@ -149,13 +154,27 @@ get_dictionary ()
     trap "" EXIT
 }
 
+output_local_dictionary ()
+{
+    # Filter out comments and empty lines.
+    grep -E -v \
+	 "^#|^$" \
+	 "$local_dictionary"
+}
+
+output_dictionaries ()
+{
+    output_local_dictionary
+    cat "$dictionary"
+}
+
 parse_dictionary ()
 {
     # Parse dictionary.
     mapfile -t words \
-	    < <(awk -F '->' '{print $1}' "$dictionary")
+	    < <(awk -F '->' '{print $1}' <(output_dictionaries))
     mapfile -t replacements \
-	    < <(awk -F '->' '{print $2}' "$dictionary")
+	    < <(awk -F '->' '{print $2}' <(output_dictionaries))
 }
 
 find_files_matching_words ()
@@ -310,12 +329,20 @@ main ()
 	return
     fi
 
+    declare -A words_done
     local i word replacement
     i=0
     for word in "${words[@]}"; do
 	replacement=${replacements[$i]}
 	i=$((i + 1))
 
+	# Skip words that are already handled.  This ensures that the local
+	# dictionary overrides the wiki dictionary.
+	if [ "${words_done[$word]}" == 1 ]; then
+	    continue
+	fi
+	words_done[$word]=1
+
 	replace_word_in_files \
 	    "$word" \
 	    "$replacement" \

gdb/exec.h

@@ -62,7 +62,7 @@ extern enum target_xfer_status
    noted above.  See memory_xfer_partial_1() in target.c for an
    example.
 
-   Return the number of bytes actually transfered, or zero when no
+   Return the number of bytes actually transferred, or zero when no
    data is available for the requested range.
 
    This function is intended to be used from target_xfer_partial

gdb/testsuite/gdb.dwarf2/dw2-step-out-of-function-no-stmt.exp

@@ -19,7 +19,7 @@
 #
 # This sort of thing can occur in optimized code, f.i. here a slightly more
 # elaborate case with another is-stmt=no entry (the one with line number 12)
-# inbetween:
+# in between:
 # INDEX  LINE   ADDRESS            IS-STMT
 # 12     13     0x00000000004003ed
 # 13     12     0x00000000004003f2

gdb/testsuite/gdb.threads/interrupt-while-step-over.exp

@@ -67,7 +67,7 @@ proc return_if_nonzero { result } {
     }
 }
 
-# Do one iteration of "c -a& -> interrupt -a".  Return zero on sucess,
+# Do one iteration of "c -a& -> interrupt -a".  Return zero on success,
 # and non-zero if some test fails.
 
 proc test_one_iteration {} {

gdb/tracepoint.c

@@ -671,7 +671,7 @@ validate_actionline (const char *line, tracepoint *t)
 		  p = strchr (p, ',');
 		  continue;
 		}
-	      /* else fall thru, treat p as an expression and parse it!  */
+	      /* else fall through, treat p as an expression and parse it!  */
 	    }
 	  tmp_p = p;
 	  for (bp_location &loc : t->locations ())

gdbserver/server.cc

@@ -1786,7 +1786,7 @@ struct qxfer
      the starting point.  The ANNEX can be used to provide additional
      data-specific information to the target.
 
-     Return the number of bytes actually transfered, zero when no
+     Return the number of bytes actually transferred, zero when no
      further transfer is possible, -1 on error, -2 when the transfer
      is not supported, and -3 on a verbose error message that should
      be preserved.  Return of a positive value smaller than LEN does