Small style fixes

Author: lovesegfault

src/librustc_mir/interpret/cast.rs

@@ -245,7 +245,7 @@ impl<'a, 'mir, 'tcx, M: Machine<'mir, 'tcx>> EvalContext<'a, 'mir, 'tcx, M> {
         bits: u128,
         fty: FloatTy,
         dest_ty: Ty<'tcx>
-        ) -> EvalResult<'tcx, Scalar> {
+    ) -> EvalResult<'tcx, Scalar> {
         use rustc::ty::TyKind::*;
         use rustc_apfloat::FloatConvert;
         match dest_ty.sty {

src/librustc_mir/interpret/eval_context.rs

@@ -281,7 +281,7 @@ impl<'c, 'b, 'a, 'mir, 'tcx, M: Machine<'mir, 'tcx>> HasDataLayout
 }
 
 impl<'a, 'mir, 'tcx, M> layout::HasTyCtxt<'tcx> for &'a EvalContext<'a, 'mir, 'tcx, M>
-where M: Machine<'mir, 'tcx>
+    where M: Machine<'mir, 'tcx>
 {
     #[inline]
     fn tcx<'b>(&'b self) -> TyCtxt<'b, 'tcx, 'tcx> {

src/librustc_mir/interpret/memory.rs

@@ -1027,7 +1027,7 @@ pub trait HasMemory<'a, 'mir, 'tcx: 'a + 'mir, M: Machine<'mir, 'tcx>> {
 }
 
 impl<'a, 'mir, 'tcx, M> HasMemory<'a, 'mir, 'tcx, M> for Memory<'a, 'mir, 'tcx, M>
-where M: Machine<'mir, 'tcx>
+    where M: Machine<'mir, 'tcx>
 {
     #[inline]
     fn memory_mut(&mut self) -> &mut Memory<'a, 'mir, 'tcx, M> {
@@ -1041,7 +1041,7 @@ where M: Machine<'mir, 'tcx>
 }
 
 impl<'a, 'mir, 'tcx, M> HasMemory<'a, 'mir, 'tcx, M> for EvalContext<'a, 'mir, 'tcx, M>
-where M: Machine<'mir, 'tcx>
+    where M: Machine<'mir, 'tcx>
 {
     #[inline]
     fn memory_mut(&mut self) -> &mut Memory<'a, 'mir, 'tcx, M> {
@@ -1055,7 +1055,7 @@ where M: Machine<'mir, 'tcx>
 }
 
 impl<'a, 'mir, 'tcx, M> layout::HasDataLayout for &'a Memory<'a, 'mir, 'tcx, M>
-where M: Machine<'mir, 'tcx>
+    where M: Machine<'mir, 'tcx>
 {
     #[inline]
     fn data_layout(&self) -> &TargetDataLayout {