Add resolved_type to Ast_Expr and remove from inheriting

ast.cpp

@@ -66,6 +66,11 @@ struct Ast{
 
 struct Ast_Type;
 struct Ast_Expr:Ast{
+  union{
+    Ast_Type *resolved_type;
+    Ast_Type *index_original_type;
+    Ast_Type *cast_after_type;
+  };
 };
 
 #define VALUE_FIELDS             \
@@ -79,7 +84,6 @@ union{                           \
 };
 #define INLINE_VALUE_FIELDS union{Value value; struct{VALUE_FIELDS};}
 struct Value{VALUE_FIELDS};
-  // BigInt             big_int_val;
 
 struct Ast_Atom: Ast_Expr{
   Ast_Decl *resolved_decl;
@@ -98,20 +102,17 @@ struct Ast_Call: Ast_Expr{
     Ast_Expr *typespec;
   };
   Array<Ast_Call_Item *> exprs;
-  Ast_Type *type;
 };
 
 struct Ast_Unary: Ast_Expr{
   Token_Kind op;
   Ast_Expr *expr;
-  Ast_Type *type;
   U64 padding[2]; // For folding constants into atoms
 };
 
 struct Ast_Index: Ast_Expr{
   Ast_Expr *expr;
   Ast_Expr *index;
-  Ast_Type *original_type;
 };
 
 struct Ast_Binary: Ast_Expr{
@@ -119,10 +120,14 @@ struct Ast_Binary: Ast_Expr{
   Ast_Expr *left;
   Ast_Expr *right;
 
-  Ast_Type *type;
+  // Ast_Type *type; // For casts after_type
   Ast_Type *before_type;
 };
 
+struct Ast_Len: Ast_Expr{
+  Ast_Expr *expr;
+};
+
 // Problem: We are parsing out of order, in the middle of parsing a function
 // we can jump down a different function, we cant therfore use global map.
 // Each scope needs to have it's checked locals list. To lookup syms we need to
@@ -156,13 +161,11 @@ struct Ast_Lambda : Ast_Expr {
   Array<Ast_Decl *> args;
   Ast_Expr         *ret;
   Ast_Scope        *scope;
-  Ast_Type *type;
 };
 
 struct Ast_Array: Ast_Expr{
   Ast_Expr *base;
   Ast_Expr *expr;
-  Ast_Type *type;
 };
 
 /*