Replacing core allocation stuff, still need to rewrite map and token

structures

core_lexing.cpp

@@ -586,7 +586,7 @@ lex__stream(Lexer *lexer){
 }
 
 function Lexer
-lex_make(Allocator *token_string_arena, Allocator *map_allocator){
+lex_make(Arena *token_string_arena, Arena *map_allocator){
   Lexer result  = {};
   lex_init(token_string_arena, map_allocator, &result);
   return result;
@@ -606,7 +606,7 @@ lex_restream(Lexer *lexer, String istream, String file){
 }
 
 function Lexer
-lex_stream(Allocator *token_string_arena, Allocator *map_allocator, String istream, String file){
+lex_stream(Arena *token_string_arena, Arena *map_allocator, String istream, String file){
   Lexer result = lex_make(token_string_arena, map_allocator);
   lex_restream(&result, istream, file);
   return result;