Refactor PhpStringUtil method names and add separate methods for getting pure string contents
Make catched exception more specific
Refactor PhpStringUtil method names and add separate methods for creating string literals from already escaped content
Implement "Convert heredoc to nowdoc (may change semantics)"
Add tests for "Convert heredoc to nowdoc (may change semantics)"
Implement "Convert nowdoc to heredoc (may change semantics)"
Add tests for "Convert nowdoc to heredoc (may change semantics)"
Fix bad refactoring on PhpStringUtil breaking conversion between heredoc and nowdoc