fix msvc

vendor/mruby-compiler2/include/mrc_diagnostic.h

@@ -0,0 +1,30 @@
+#ifndef MRC_DIAGNOSTIC_H
+#define MRC_DIAGNOSTIC_H
+
+#include "mrc_ccontext.h"
+
+MRC_BEGIN_DECL
+
+typedef enum {
+  MRC_PARSER_WARNING = 0,
+  MRC_PARSER_ERROR = 1,
+  MRC_GENERATOR_WARNING = 2,
+  MRC_GENERATOR_ERROR = 3,
+} mrc_diagnostic_code;
+
+typedef struct mrc_diagnostic_list {
+  mrc_diagnostic_code code;
+  char *message;
+  uint32_t line;
+  uint32_t column;
+  struct mrc_diagnostic_list *next;
+} mrc_diagnostic_list;
+
+struct mrc_ccontext;
+
+void mrc_diagnostic_list_append(struct mrc_ccontext *c, const uint8_t *location_start, const char *message, mrc_diagnostic_code code);
+void mrc_diagnostic_list_free(struct mrc_ccontext *c);
+
+MRC_END_DECL
+
+#endif // MRC_DIAGNOSTIC_H