Move an EarlyParamRegion impl block.

Next to all the other `EarlyParamRegion` pieces.

compiler/rustc_middle/src/ty/mod.rs

@@ -49,7 +49,7 @@ use rustc_serialize::{Decodable, Encodable};
 use rustc_session::lint::LintBuffer;
 pub use rustc_session::lint::RegisteredTools;
 use rustc_span::hygiene::MacroKind;
-use rustc_span::{DUMMY_SP, ExpnId, ExpnKind, Ident, Span, Symbol, kw, sym};
+use rustc_span::{DUMMY_SP, ExpnId, ExpnKind, Ident, Span, Symbol, sym};
 pub use rustc_type_ir::data_structures::{DelayedMap, DelayedSet};
 pub use rustc_type_ir::fast_reject::DeepRejectCtxt;
 #[allow(
@@ -453,14 +453,6 @@ impl<'tcx> rustc_type_ir::Flags for Ty<'tcx> {
     }
 }
 
-impl EarlyParamRegion {
-    /// Does this early bound region have a name? Early bound regions normally
-    /// always have names except when using anonymous lifetimes (`'_`).
-    pub fn is_named(&self) -> bool {
-        self.name != kw::UnderscoreLifetime
-    }
-}
-
 /// The crate outlives map is computed during typeck and contains the
 /// outlives of every item in the local crate. You should not use it
 /// directly, because to do so will make your pass dependent on the

compiler/rustc_middle/src/ty/region.rs

@@ -324,6 +324,14 @@ pub struct EarlyParamRegion {
     pub name: Symbol,
 }
 
+impl EarlyParamRegion {
+    /// Does this early bound region have a name? Early bound regions normally
+    /// always have names except when using anonymous lifetimes (`'_`).
+    pub fn is_named(&self) -> bool {
+        self.name != kw::UnderscoreLifetime
+    }
+}
+
 impl rustc_type_ir::inherent::ParamLike for EarlyParamRegion {
     fn index(self) -> u32 {
         self.index