Fix test fallouts

Author: flaper87

src/librustc_driver/test.rs

@@ -206,7 +206,7 @@ impl<'a, 'tcx> Env<'a, 'tcx> {
 
                 ast::ItemEnum(..) | ast::ItemStruct(..) |
                 ast::ItemTrait(..) | ast::ItemImpl(..) |
-                ast::ItemMac(..) => {
+                ast::ItemMac(..) | ast::ItemDefaultImpl(..) => {
                     None
                 }
 

src/test/parse-fail/empty-impl-semicolon.rs

@@ -8,4 +8,4 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-impl Foo; //~ ERROR expected one of `(`, `+`, `::`, `<`, `for`, `where`, or `{`, found `;`
+impl Foo; //~ ERROR expected one of `(`, `+`, `..`, `::`, `<`, `for`, `where`, or `{`, found `;`

src/test/parse-fail/multitrait.rs

@@ -13,7 +13,7 @@ struct S {
 }
 
 impl Cmp, ToString for S {
-//~^ ERROR: expected one of `(`, `+`, `::`, `<`, `for`, `where`, or `{`, found `,`
+//~^ ERROR: expected one of `(`, `+`, `..`, `::`, `<`, `for`, `where`, or `{`, found `,`
   fn eq(&&other: S) { false }
   fn to_string(&self) -> String { "hi".to_string() }
 }

src/test/parse-fail/trait-bounds-not-on-impl.rs

@@ -13,7 +13,9 @@ trait Foo {
 
 struct Bar;
 
-impl Foo + Owned for Bar { //~ ERROR not a trait
+impl Foo + Owned for Bar {
+//~^ ERROR not a trait
+//~^^ ERROR expected one of `..`, `where`, or `{`, found `Bar`
 }
 
 fn main() { }

src/test/pretty/default-trait-impl.rs

@@ -12,7 +12,9 @@
 
 // pp-exact
 
-trait MyTrait { }
+use std::marker::MarkerTrait;
+
+trait MyTrait: MarkerTrait { }
 
 impl MyTrait for .. { }