Fixes to the roll-up

src/compiletest/runtest.rs

@@ -990,7 +990,7 @@ fn check_expected_errors(expected_errors: Vec<errors::ExpectedError> ,
         let i = s.chars();
         let c : Vec<char> = i.map( |c| {
             if c.is_ascii() {
-                c.to_ascii().to_lowercase().to_char()
+                c.to_ascii().to_lowercase().as_char()
             } else {
                 c
             }

src/test/pretty/issue-19077.rs

@@ -13,7 +13,7 @@
 fn main() {
     match true {
         true if true => (),
-        false => unsafe { },
+        false if false => unsafe { },
         true => { }
         false => (),
     }

src/test/run-pass/super-fast-paren-parsing.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// ignore-pretty
+//
 // exec-env:RUST_MIN_STACK=16000000
 //
 // Big stack is needed for pretty printing, a little sad...