Fix whitespace, change "value" to "name_val"

"name_val" seem more consistent with the variable naming in the surrounding code.

Author: TankhouseAle

src/librustc_mir/interpret/intrinsics.rs

@@ -78,13 +78,13 @@ impl<'a, 'mir, 'tcx, M: Machine<'a, 'mir, 'tcx>> InterpretCx<'a, 'mir, 'tcx, M>
                 let id_val = Scalar::from_uint(type_id, dest.layout.size);
                 self.write_scalar(id_val, dest)?;
             }
-            
+
             "type_name" => {
                 let ty = substs.type_at(0);
                 let ty_name = ty.to_string();
-                let value = self.str_to_immediate(&ty_name)?;
-                self.write_immediate(value, dest)?;
-            }            
+                let name_val = self.str_to_immediate(&ty_name)?;
+                self.write_immediate(name_val, dest)?;
+            }
             | "ctpop"
             | "cttz"
             | "cttz_nonzero"