archive: fixed addfile URL from the report.cgi. improved xml validation for '_' in attribute values and <abc/> elements.
Added test cases for #4801 (Cppcheck fails to parse Posix (crash in CheckOther::checkPipeParameterSize()))
TestAssignIf: improved code coverage
CheckOther: removed redundant conditions. No need to check if varid is > 0 and if there is variable info.
TestRunner: added test case for assignment simplification in do-while (#4881).
AssignIf: added todo test case (pass variable by value to function)