rustc: Move filesearch into metadata mod

It's not that related to metadata, but metadata needs it and it will
probably be useful for doing dynamic loading.

Author: brson

src/cargo/cargo.rs

@@ -2,8 +2,8 @@
 
 import syntax::{ast, codemap};
 import syntax::parse;
-import rustc::util::filesearch::{get_cargo_root, get_cargo_root_nearest,
-                                 get_cargo_sysroot, libdir};
+import rustc::metadata::filesearch::{get_cargo_root, get_cargo_root_nearest,
+                                     get_cargo_sysroot, libdir};
 import syntax::diagnostic;
 
 import result::{ok, err};

src/rustc/back/link.rs

@@ -13,7 +13,7 @@ import syntax::ast;
 import syntax::print::pprust;
 import lib::llvm::{ModuleRef, mk_pass_manager, mk_target_data, True, False,
         FileType};
-import util::filesearch;
+import metadata::filesearch;
 import syntax::ast_map::{path, path_mod, path_name};
 
 enum output_type {

src/rustc/back/rpath.rs

@@ -2,7 +2,7 @@ import std::map;
 import std::map::hashmap;
 import metadata::cstore;
 import driver::session;
-import util::filesearch;
+import metadata::filesearch;
 
 export get_rpath_flags;
 

src/rustc/driver/driver.rs

@@ -1,12 +1,12 @@
 // -*- rust -*-
-import metadata::{creader, cstore};
+import metadata::{creader, cstore, filesearch};
 import session::session;
 import syntax::parse;
 import syntax::{ast, codemap};
 import syntax::attr;
 import middle::{trans, resolve, freevars, kind, ty, typeck, lint};
 import syntax::print::{pp, pprust};
-import util::{ppaux, filesearch};
+import util::ppaux;
 import back::link;
 import result::{ok, err};
 import std::getopts;

src/rustc/driver/session.rs

@@ -4,7 +4,7 @@ import syntax::ast::node_id;
 import codemap::span;
 import syntax::ast::{int_ty, uint_ty, float_ty};
 import syntax::parse::parse_sess;
-import util::filesearch;
+import metadata::filesearch;
 import back::target_strs;
 import back::link;
 import middle::lint;

src/rustc/metadata.rs

@@ -19,8 +19,6 @@ mod driver {
 mod util {
     import ppaux = util_::ppaux;
     export ppaux;
-    import filesearch = util_::filesearch;
-    export filesearch;
 }
 
 mod lib {

src/rustc/metadata/creader.rs

@@ -11,7 +11,7 @@ import syntax::visit;
 import syntax::codemap::span;
 import std::map::{hashmap, int_hash};
 import syntax::print::pprust;
-import util::filesearch::filesearch;
+import filesearch::filesearch;
 import common::*;
 
 export read_crates;

src/rustc/util/filesearch.rs renamed to src/rustc/metadata/filesearch.rs

@@ -9,7 +9,6 @@ import syntax::{ast, attr};
 import syntax::print::pprust;
 import syntax::codemap::span;
 import lib::llvm::{False, llvm, mk_object_file, mk_section_iter};
-import util::filesearch;
 import filesearch::filesearch;
 import io::writer_util;
 

src/rustc/metadata/loader.rs

@@ -122,6 +122,7 @@ mod metadata {
     export tyencode;
     export tydecode;
     export loader;
+    export filesearch;
 
     mod common;
     mod tyencode;
@@ -132,6 +133,7 @@ mod metadata {
     mod cstore;
     mod csearch;
     mod loader;
+    mod filesearch;
 }
 
 mod driver {
@@ -142,7 +144,6 @@ mod driver {
 mod util {
     mod common;
     mod ppaux;
-    mod filesearch;
 }
 
 mod lib {

src/rustc/rustc.rc

@@ -17,7 +17,7 @@ import syntax::ast;
 import syntax::codemap;
 import syntax::ast_map;
 import rustc::back::link;
-import rustc::util::filesearch;
+import rustc::metadata::filesearch;
 import rustc::front;
 import rustc::middle::resolve;