Fix REPL test parser nits

Follow-up to https://gerrit.lix.systems/c/lix/+/546

Change-Id: Ie603f01e5520329bf879e061cea9e3fba45213fd

tests/functional/repl_characterization/repl_characterization.cc

@@ -123,11 +123,6 @@ public:
     {
         runReplTestPath(nameBase, {});
     }
-
-    void runDebuggerTest(const std::string_view & nameBase)
-    {
-        runReplTestPath(nameBase, {"--debugger"});
-    }
 };
 
 TEST_F(ReplSessionTest, round_trip)

tests/functional/repl_characterization/test-session.cc

@@ -121,7 +121,7 @@ bool TestSession::readOutThen(ReadOutThenCallback cb)
 
 bool TestSession::waitForPrompt()
 {
-    bool notEof = readOutThen([&](std::span<char> s) -> ReadOutThenCallbackResult {
+    bool notEof = readOutThen([&](std::span<const char> s) -> ReadOutThenCallbackResult {
         bool foundPrompt = false;
 
         for (auto ch : s) {
@@ -147,7 +147,7 @@ bool TestSession::waitForPrompt()
 
 void TestSession::wait()
 {
-    readOutThen([&](std::span<char> s) {
+    readOutThen([&](std::span<const char> s) {
         for (auto ch : s) {
             eater.feed(ch, [&](char c) {
                 outputParser.feed(c);

tests/functional/repl_characterization/test-session.hh

@@ -76,7 +76,7 @@ private:
     void wait();
 
     enum class ReadOutThenCallbackResult { Stop, Continue };
-    using ReadOutThenCallback = std::function<ReadOutThenCallbackResult(std::span<char>)>;
+    using ReadOutThenCallback = std::function<ReadOutThenCallbackResult(std::span<const char>)>;
     /** Reads some chunks of output, calling the callback provided for each
      * chunk and stopping if it returns Stop.
      *

tests/unit/libutil-support/tests/cli-literate-parser.cc

@@ -35,7 +35,7 @@ struct Parser
         : input(input)
         , rest(this->input)
         , prompt(config.prompt)
-        , indentString(std::string(config.indent, ' '))
+        , indentString(config.indent, ' ')
         , lastWasOutput(false)
         , syntax{}
     {
@@ -260,12 +260,11 @@ struct Parser
         std::vector<Node> newSyntax;
         auto shouldStart = true;
 
-        for (auto it = syntax.begin(); it != syntax.end(); ++it) {
+        for (auto & node : syntax) {
-            Node node = std::move(*it);
             std::visit(
                 overloaded{
                     [&](Args & e) {
-                        auto split = shell_split(std::string(e.text));
+                        auto split = shell_split(e.text);
                         args.insert(args.end(), split.begin(), split.end());
                     },
                     [&](ShouldStart & e) { shouldStart = e.shouldStart; },
@@ -293,8 +292,7 @@ auto tidySyntax(View syntax) -> std::vector<Node>
     auto lastWasCommand = true;
     std::vector<Node> newSyntax;
 
-    for (auto it = syntax.begin(); it != syntax.end(); ++it) {
+    for (auto & node : syntax) {
-        Node node = *it;
         // Only compare `Command` and `Output` nodes.
         if (std::visit([&](auto && e) { return !e.shouldCompare(); }, node)) {
             continue;