Revert "Update all Angular libs (run update_all.sh)."

third_party/pkg/angular/lib/core/parser/characters.dart

 library angular.core.parser.characters;
 
 const int $EOF       = 0;
 const int $TAB       = 9;
 const int $LF        = 10;
 const int $VTAB      = 11;
 const int $FF        = 12;
 const int $CR        = 13;
 const int $SPACE     = 32;
 const int $BANG      = 33;
@@ skipping 79 matching lines @@
 const int $x = 120;
 const int $y = 121;
 const int $z = 122;
 
 const int $LBRACE = 123;
 const int $BAR    = 124;
 const int $RBRACE = 125;
 const int $TILDE  = 126;
 const int $NBSP   = 160;
 
-bool isWhitespace(int code) =>
-  (code >= $TAB && code <= $SPACE) || (code == $NBSP);
+bool isWhitespace(int code) {
+  return (code >= $TAB && code <= $SPACE) || (code == $NBSP);
+}
 
-bool isIdentifierStart(int code) =>
-    ($a <= code && code <= $z) ||
-    ($A <= code && code <= $Z) ||
-    (code == $_) ||
-    (code == $$);
+bool isIdentifierStart(int code) {
+  return ($a <= code && code <= $z)
+      || ($A <= code && code <= $Z)
+      || (code == $_)
+      || (code == $$);
+}
 
-bool isIdentifierPart(int code) =>
-    ($a <= code && code <= $z) ||
-    ($A <= code && code <= $Z) ||
-    ($0 <= code && code <= $9) ||
-    (code == $_) ||
-    (code == $$);
+bool isIdentifierPart(int code) {
+  return ($a <= code && code <= $z)
+      || ($A <= code && code <= $Z)
+      || ($0 <= code && code <= $9)
+      || (code == $_)
+      || (code == $$);
+  }
 
-bool isDigit(int code) => $0 <= code && code <= $9;
+bool isDigit(int code) {
+  return ($0 <= code && code <= $9);
+}
 
-bool isExponentStart(int code) => code == $e || code == $E;
+bool isExponentStart(int code) {
+  return (code == $e || code == $E);
+}
 
-bool isExponentSign(int code) => code == $MINUS || code == $PLUS;
+bool isExponentSign(int code) {
+  return (code == $MINUS || code == $PLUS);
+}
 
 int unescape(int code) {
   switch(code) {
     case $n: return $LF;
     case $f: return $FF;
     case $r: return $CR;
     case $t: return $TAB;
     case $v: return $VTAB;
     default: return code;
   }
 }