rustc: remove the last mentions of @fn.

Author: eddyb

src/librustc/middle/mem_categorization.rs

@@ -76,7 +76,7 @@ use syntax::parse::token;
 pub enum categorization {
     cat_rvalue(ty::Region),            // temporary val, argument is its scope
     cat_static_item,
-    cat_copied_upvar(CopiedUpvar),     // upvar copied into @fn or ~fn env
+    cat_copied_upvar(CopiedUpvar),     // upvar copied into proc env
     cat_upvar(ty::UpvarId, ty::UpvarBorrow), // by ref upvar from stack closure
     cat_local(ast::NodeId),            // local variable
     cat_arg(ast::NodeId),              // formal argument
@@ -1092,7 +1092,7 @@ impl<TYPER:Typer> MemCategorizationContext<TYPER> {
               ~"static item"
           }
           cat_copied_upvar(_) => {
-              ~"captured outer variable in a heap closure"
+              ~"captured outer variable in a proc"
           }
           cat_rvalue(..) => {
               ~"non-lvalue"

src/librustc/middle/trans/closure.rs

@@ -38,17 +38,14 @@ use syntax::ast_util;
 // roughly as follows:
 //
 // struct rust_opaque_box {         // see rust_internal.h
-//   unsigned ref_count;            // only used for @fn()
-//   type_desc *tydesc;             // describes closure_data struct
-//   rust_opaque_box *prev;         // (used internally by memory alloc)
-//   rust_opaque_box *next;         // (used internally by memory alloc)
+//   unsigned ref_count;            // obsolete (part of @T's header)
+//   fn(void*) *drop_glue;          // destructor (for proc)
+//   rust_opaque_box *prev;         // obsolete (part of @T's header)
+//   rust_opaque_box *next;         // obsolete (part of @T's header)
 //   struct closure_data {
-//       type_desc *bound_tdescs[]; // bound descriptors
-//       struct {
-//         upvar1_t upvar1;
-//         ...
-//         upvarN_t upvarN;
-//       } bound_data;
+//       upvar1_t upvar1;
+//       ...
+//       upvarN_t upvarN;
 //    }
 // };
 //