fixed unmatchedSuppression selfcheck warnings

Author: firewave

.selfcheck_suppressions

@@ -2,7 +2,6 @@ missingIncludeSystem
 
 # temporary suppressions - fix the warnings!
 simplifyUsing:lib/valueptr.h
-varid0:gui/projectfile.cpp
 naming-privateMemberVariable:gui/test/cppchecklibrarydata/testcppchecklibrarydata.h
 symbolDatabaseWarning:*/moc_*.cpp
 simplifyUsing:*/moc_*.cpp

lib/checkclass.cpp

@@ -3095,7 +3095,6 @@ void CheckClass::checkCopyCtorAndEqOperator()
 {
     // This is disabled because of #8388
     // The message must be clarified. How is the behaviour different?
-    // cppcheck-suppress unreachableCode - remove when code is enabled again
     if ((true) || !mSettings->severity.isEnabled(Severity::warning)) // NOLINT(readability-simplify-boolean-expr)
         return;
 

lib/keywords.cpp

@@ -169,7 +169,6 @@ static const std::unordered_set<std::string> cpp26_keywords_all = {
 // cppcheck-suppress unusedFunction
 const std::unordered_set<std::string>& Keywords::getAll(Standards::cstd_t cStd)
 {
-    // cppcheck-suppress missingReturn
     switch (cStd) {
     case Standards::cstd_t::C89:
         return c89_keywords_all;
@@ -187,7 +186,6 @@ const std::unordered_set<std::string>& Keywords::getAll(Standards::cstd_t cStd)
 
 // cppcheck-suppress unusedFunction
 const std::unordered_set<std::string>& Keywords::getAll(Standards::cppstd_t cppStd) {
-    // cppcheck-suppress missingReturn
     switch (cppStd) {
     case Standards::cppstd_t::CPP03:
         return cpp03_keywords_all;
@@ -210,7 +208,6 @@ const std::unordered_set<std::string>& Keywords::getAll(Standards::cppstd_t cppS
 // cppcheck-suppress unusedFunction
 const std::unordered_set<std::string>& Keywords::getOnly(Standards::cstd_t cStd)
 {
-    // cppcheck-suppress missingReturn
     switch (cStd) {
     case Standards::cstd_t::C89:
         return c89_keywords;
@@ -229,7 +226,6 @@ const std::unordered_set<std::string>& Keywords::getOnly(Standards::cstd_t cStd)
 // cppcheck-suppress unusedFunction
 const std::unordered_set<std::string>& Keywords::getOnly(Standards::cppstd_t cppStd)
 {
-    // cppcheck-suppress missingReturn
     switch (cppStd) {
     case Standards::cppstd_t::CPP03:
         return cpp03_keywords;

lib/valueflow.cpp

@@ -4831,7 +4831,7 @@ static void addToErrorPath(ValueFlow::Value& value, const ValueFlow::Value& from
 }
 
 static std::vector<Token*> findAllUsages(const Variable* var,
-                                         Token* start, // cppcheck-suppress constParameterPointer // FP
+                                         Token* start,
                                          const Library& library)
 {
     // std::vector<Token*> result;