add -Z continue-parse-after-error to parse-fail tests

The new handling fixed a latent bug in the parser error handling where
it would only abort after the second error (when configured to stop
after the first error). This is because the check for `error_count != 0`
was occuring before the increment. Since the increment is tied to the
`emit()` call now this no longer occurs.

Author: nikomatsakis

src/test/parse-fail/associated-types-project-from-hrtb-explicit.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// compile-flags: -Z parse-only
+// compile-flags: -Z parse-only -Z continue-parse-after-error
 
 // Test you can't use a higher-ranked trait bound inside of a qualified
 // path (just won't parse).

src/test/parse-fail/generic-non-trailing-defaults.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// compile-flags: -Z parse-only
+// compile-flags: -Z parse-only -Z continue-parse-after-error
 
 struct Heap;
 

src/test/parse-fail/issue-17904.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// compile-flags: -Z parse-only
+// compile-flags: -Z parse-only -Z continue-parse-after-error
 
 struct Baz<U> where U: Eq(U); //This is parsed as the new Fn* style parenthesis syntax.
 struct Baz<U> where U: Eq(U) -> R; // Notice this parses as well.

src/test/parse-fail/lex-bad-octal-literal.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// compile-flags: -Z parse-only -Z continue-parse-after-error
+
 fn main() {
     0o18; //~ ERROR invalid digit for a base 8 literal
     0o1234_9_5670;  //~ ERROR invalid digit for a base 8 literal

src/test/parse-fail/lifetime-no-keyword.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// compile-flags: -Z parse-only
+// compile-flags: -Z parse-only -Z continue-parse-after-error
 
 fn foo<'a>(a: &'a isize) { }
 fn bar(a: &'static isize) { }

src/test/parse-fail/raw-byte-string-literals.rs

@@ -8,10 +8,10 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// compile-flags: -Z parse-only
+// compile-flags: -Z parse-only -Z continue-parse-after-error
 
 
 pub fn main() {
-    br"é";  //~ raw byte string must be ASCII
-    br##~"a"~##;  //~ only `#` is allowed in raw string delimitation
+    br"é";  //~ ERROR raw byte string must be ASCII
+    br##~"a"~##;  //~ ERROR only `#` is allowed in raw string delimitation
 }

src/test/parse-fail/removed-syntax-field-let.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// compile-flags: -Z parse-only
+// compile-flags: -Z parse-only -Z continue-parse-after-error
 
 struct s {
     let foo: (),

src/test/parse-fail/syntax-trait-polarity.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// compile-flags: -Z parse-only
+// compile-flags: -Z parse-only -Z continue-parse-after-error
 
 #![feature(optin_builtin_traits)]
 

src/test/parse-fail/trailing-plus-in-bounds.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// compile-flags: -Z parse-only
+// compile-flags: -Z parse-only -Z continue-parse-after-error
 
 use std::fmt::Debug;
 

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

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// compile-flags: -Z parse-only
+// compile-flags: -Z parse-only -Z continue-parse-after-error
 
 trait Foo {
 }

src/test/parse-fail/use-as-where-use-ends-with-mod-sep.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// compile-flags: -Z parse-only
+// compile-flags: -Z parse-only -Z continue-parse-after-error
 
 use std::any:: as foo; //~ ERROR expected identifier, found keyword `as`
 //~^ ERROR: expected one of `::`, `;`, or `as`, found `foo`

src/test/parse-fail/where-clauses-no-bounds-or-predicates.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// compile-flags: -Z parse-only
+// compile-flags: -Z parse-only -Z continue-parse-after-error
 
 fn equal1<T>(_: &T, _: &T) -> bool where {
 //~^ ERROR a `where` clause must have at least one predicate in it