Added fix its to diagnostics.

src/Diagnostic.cc

@@ -14,6 +14,14 @@ clang::Diagnostic::Diagnostic(CXTranslationUnit& cx_tu, CXDiagnostic& cx_diagnos
   clang::Tokens tokens(cx_tu, SourceRange(start_location, start_location));
   if(tokens.size()==1)
     offsets={start_offset, tokens.begin()->offsets.second};
+  
+  unsigned num_fix_its=clang_getDiagnosticNumFixIts(cx_diagnostic);
+  for(unsigned c=0;c<num_fix_its;c++) {
+    CXSourceRange fix_it_range;
+    fix_its.emplace_back();
+    fix_its.back().string=clang::to_string(clang_getDiagnosticFixIt(cx_diagnostic, c, &fix_it_range));
+    fix_its.back().offsets=clang::SourceRange(fix_it_range).get_offsets();
+  }
 }
 
 const std::string clang::Diagnostic::get_severity_spelling(unsigned severity) {

src/Diagnostic.h

@@ -10,6 +10,12 @@ namespace clang {
     friend class TranslationUnit;
     Diagnostic(CXTranslationUnit& cx_tu, CXDiagnostic& cx_diagnostic);
   public:
+    class FixIt {
+    public:
+      std::string string;
+      std::pair<clang::Offset, clang::Offset> offsets;
+    };
+    
     static const std::string get_severity_spelling(unsigned severity);
 
     unsigned severity;
@@ -17,6 +23,7 @@ namespace clang {
     std::string spelling;
     std::string path;
     std::pair<clang::Offset, clang::Offset> offsets;
+    std::vector<FixIt> fix_its;
   };
 }