Slightly improved C++ include fixits

src/source_clang.cpp

@@ -420,8 +420,9 @@ void Source::ClangViewParse::update_diagnostics() {
               }
             }
             if(diagnostic.severity >= clangmm::Diagnostic::Severity::Error &&
-               starts_with(diagnostic.spelling, "variable has incomplete type '")) {
-              size_t start = 30;
+               (starts_with(diagnostic.spelling, "variable has incomplete type '") ||
+                starts_with(diagnostic.spelling, "member access into incomplete type '"))) {
+              auto start = diagnostic.spelling.find('\'') + 1;
               auto end = diagnostic.spelling.find('\'', start);
               if(end != std::string::npos) {
                 auto type = diagnostic.spelling.substr(start, end - start);
@@ -1110,9 +1111,9 @@ Source::ClangViewAutocomplete::ClangViewAutocomplete(const boost::filesystem::pa
       row = text.substr(0, pos);
     else
       row = text;
-    //erase existing variable or function before insert iter
+    // Erase existing variable or function before insert iter
     get_buffer()->erase(CompletionDialog::get()->start_mark->get_iter(), get_buffer()->get_insert()->get_iter());
-    //do not insert template argument or function parameters if they already exist
+    // Do not insert template argument or function parameters if they already exist
     auto iter = get_buffer()->get_insert()->get_iter();
     if(*iter == '<' || *iter == '(') {
       auto bracket_pos = row.find(*iter);
@@ -1139,7 +1140,7 @@ Source::ClangViewAutocomplete::ClangViewAutocomplete(const boost::filesystem::pa
       row.pop_back();
 
     get_buffer()->insert(CompletionDialog::get()->start_mark->get_iter(), row);
-    //if selection is finalized, select text inside template arguments or function parameters
+    // If selection is finalized, select text inside template arguments or function parameters
     if(hide_window) {
       size_t start_pos = std::string::npos;
       size_t end_pos = std::string::npos;
@@ -1185,7 +1186,7 @@ Source::ClangViewAutocomplete::ClangViewAutocomplete(const boost::filesystem::pa
           get_buffer()->select_range(get_buffer()->get_iter_at_offset(start_offset), get_buffer()->get_iter_at_offset(end_offset));
       }
       else {
-        //new autocomplete after for instance when selecting "std::"
+        // New autocomplete after for instance when selecting "std::"
         auto iter = get_buffer()->get_insert()->get_iter();
         if(iter.backward_char() && *iter == ':') {
           autocomplete.run();
@@ -1694,7 +1695,7 @@ Source::ClangViewRefactor::ClangViewRefactor(const boost::filesystem::path &file
         return usages;
 
       auto embolden_token = [](std::string &line, unsigned token_start_pos, unsigned token_end_pos) {
-        //markup token as bold
+        // Markup token as bold
         size_t pos = 0;
         while((pos = line.find('&', pos)) != std::string::npos) {
           size_t pos2 = line.find(';', pos + 2);