syntax: Add explicit exports in parser mods

src/librustsyntax/parse/comments.rs

@@ -2,6 +2,11 @@ import io::reader_util;
 import util::interner;
 import lexer::{ reader, new_reader, next_token, is_whitespace };
 
+export cmnt;
+export lit;
+export cmnt_style;
+export gather_comments_and_literals;
+
 enum cmnt_style {
     isolated, // No code on either side of each line of the comment
     trailing, // Code exists to the left of the comment

src/librustsyntax/parse/parser.rs

@@ -8,6 +8,33 @@ import ast::{node_id, spanned};
 import ast_util::{mk_sp, ident_to_path};
 import lexer::reader;
 
+export as_prec;
+export expr_requires_semi_to_be_stmt;
+export file_type;
+export mk_item;
+export next_node_id;
+export new_parser_from_file;
+export new_parser_from_source_str;
+export parser;
+export parse_crate_from_file;
+export parse_crate_from_crate_file;
+export parse_crate_from_source_str;
+export parse_crate_mod;
+export parse_expr;
+export parse_expr_from_source_str;
+export parse_from_source_str;
+export parse_inner_attrs_and_next;
+export parse_item;
+export parse_mod_items;
+export parse_outer_attributes;
+export parse_pat;
+export parse_sess;
+export parse_stmt;
+export parse_ty;
+export prec_table;
+export stmt_ends_with_semi;
+export unop_prec;
+
 enum restriction {
     UNRESTRICTED,
     RESTRICT_STMT_EXPR,

src/librustsyntax/rustsyntax.rc

@@ -21,7 +21,12 @@ mod fold;
 mod util {
     mod interner;
 }
+
 mod parse {
+    export parser;
+    export lexer;
+    export comments;
+
     mod eval;
     mod lexer;
     mod parser;