Compiler specs: Reordering
Compiler specs: Improve |textdomain| statement specs
Compiler specs: Improve assignments specs
Compiler specs: Improve |return| statement specs
Compiler specs: Improve |break| and |continue| statements specs
Compiler specs: Improve function definitions specs
Compiler specs: Improve statement blocks specs
Compiler specs: Improve `switch` statement specs
Compiler specs: Improve clients specs
Compiler specs: Improve modules specs