Using arena as token array, remove arenas idea

core_compiler.h

@@ -1,24 +1,4 @@
 
-/*
-  @! Dont fully rely on files!!!
-  @! Language.core shouldnt be a file!
-  @! Separate out the codegen stage cause that can change
-  @! Look into String_Builders in Core_Ctx
-  @! Look into stage allocator and perhaps 
-    use it more often to reduce scenarios
-    with 2 allocators, and simplify stuff
-  @! Cleanup big int allocator
-  @! Errors and logs should be placed on the compiler context
-
-  @! Clean way to free all memory and reset the compiler
-  @! Bring the Table<>
-  @! Look into List, check if that's neccessary
-
-  Probably want to implement a Red Black Tree then
-  probably I wouldn't need any sort of heap based
-  data structure.
-  */
-
 struct Lex_Stream{
   String stream;
   S64    iter;
@@ -33,11 +13,13 @@ struct Lex_Stream{
 struct Core_Ctx{
   Allocator *heap;
 
-  Push_Arena perm_push_only;
-  Push_Arena *perm; // Stores: AST, tokens, interns
+  Arena perm_push_only;
+  Arena *perm; // Stores: AST, tokens, interns
 
-  Scratch_Arena *scratch;
-  Scratch_Arena *stage_arena;
+  Arena *scratch;
+  Arena scratch_;
+  Arena stage_arena_;
+  Arena *stage_arena;
   String_Builder helper_builder;
 
   int errors_occured;