Enhances functionality related to preprocessors

[NiumXp]

Goals

• Remove preprocessor tokens
• Add to \ be a BACKSLASH token
  • I will do it in a separated PR
• Support for null directives
• Parse #error
• Parse #warning
• Parse #pragma
• Parse #define
• Parse #if
• Parse #elif
• Parse #else
• Parse #endif
• Parse #include and #import
  • String path
  • Tag path
    • Recursive path
    • Support names with -, _, ., etc.
• Add test cases for all preprocessors
• Fix all CheckPreprocessor* rules
  • CheckPreprocessorInclude
  • CheckPreprocessorDefine
  • CheckPreprocessorIndent
  • CheckPreprocessorProtection
• Comments (one or multiline) in preprocessor EOL

Improves

• An error is returned when some instruction of a .h is written outside a header guard
• An error is returned when some composed preprocessor statements (#if, #else, etc.) are not being closed or don't have a start (e.g #else without an #if)
• "Argumented" preprocessor statements (#define, #if, etc.) now need a space after identifier (e.g #include <stdio.h>)
• A proper error is returned when the macro defining the guard header is ok, but not in uppercase
• Add an error when macro functions are being declared
• Add to preprocessors be allowed only in global scope
• Add an error when multiple header protection in given
• Add a proper error when the guard of header protection is not defined

Fixes

• Including C files  #328
• Exception when #include is not followed by a space #383
• [CRASH] check_preprocessor_include #397

Notes

...

[NiumXp]

The current failing test is about the file ok_ifdef.c, norminette is considering the IsFuncDeclaration as IsDeclaration, I don't know what I changed for this bug to happen, it looks like a similar bug happens in #322.

Anyway, I need help here anyone?

Solved in 00ecd0d.

[NiumXp]

@matthieu42Network, could you please review it?

[matthieu42Network]

Hello, I will ask for a 2nd approve for a PR this big then merge :)