Run lint for unsafe on the ast

Author: JohnTitor

src/librustc_lint/lib.rs

@@ -111,6 +111,7 @@ pub fn register_builtins(store: &mut lint::LintStore, sess: Option<&Session>) {
     add_early_builtin!(sess,
                        UnusedParens,
                        UnusedImportBraces,
+                       UnsafeCode,
                        AnonymousParameters,
                        UnusedDocComment,
                        BadRepr,
@@ -134,7 +135,6 @@ pub fn register_builtins(store: &mut lint::LintStore, sess: Option<&Session>) {
         NonSnakeCase: NonSnakeCase,
         NonUpperCaseGlobals: NonUpperCaseGlobals,
         NonShorthandFieldPatterns: NonShorthandFieldPatterns,
-        UnsafeCode: UnsafeCode,
         UnusedAllocation: UnusedAllocation,
         MissingCopyImplementations: MissingCopyImplementations,
         UnstableFeatures: UnstableFeatures,