std: Convert statics to constants

This commit repurposes most statics as constants in the standard library itself,
with the exception of TLS keys which precisely have their own memory location as
an implementation detail.

This commit also rewrites the bitflags syntax to use `const` instead of
`static`. All invocations will need to replace the word `static` with `const`
when declaring flags.

Due to the modification of the `bitflags!` syntax, this is a:

[breaking-change]

2 files changed, 3 insertions, 3 deletions

diff --git a/src/libstd/collections/hashmap/map.rs b/src/libstd/collections/hashmap/map.rs
index 6b9c76e1568..ef40402105b 100644
--- a/src/libstd/collections/hashmap/map.rs
+++ b/src/libstd/collections/hashmap/map.rs
@@ -41,8 +41,8 @@ use super::table::{
     SafeHash
 };
 
-static INITIAL_LOG2_CAP: uint = 5;
-pub static INITIAL_CAPACITY: uint = 1 << INITIAL_LOG2_CAP; // 2^5
+const INITIAL_LOG2_CAP: uint = 5;
+pub const INITIAL_CAPACITY: uint = 1 << INITIAL_LOG2_CAP; // 2^5
 
 /// The default behavior of HashMap implements a load factor of 90.9%.
 /// This behavior is characterized by the following conditions:
diff --git a/src/libstd/collections/hashmap/table.rs b/src/libstd/collections/hashmap/table.rs
index bad5ce3e475..ee64a7931c0 100644
--- a/src/libstd/collections/hashmap/table.rs
+++ b/src/libstd/collections/hashmap/table.rs
@@ -24,7 +24,7 @@ use ptr::{RawPtr, copy_nonoverlapping_memory, zero_memory};
 use ptr;
 use rt::heap::{allocate, deallocate};
 
-static EMPTY_BUCKET: u64 = 0u64;
+const EMPTY_BUCKET: u64 = 0u64;
 
 /// The raw hashtable, providing safe-ish access to the unzipped and highly
 /// optimized arrays of hashes, keys, and values.