dart2js: run dartfmt on tests

tests/compiler/dart2js_extra/consistent_subtract_error_test.dart

Index: tests/compiler/dart2js_extra/consistent_subtract_error_test.dart
diff --git a/tests/compiler/dart2js_extra/consistent_subtract_error_test.dart b/tests/compiler/dart2js_extra/consistent_subtract_error_test.dart
index 757c37dff58a3d4044d61ce406157a2e8add75e0..0447557cabe85e3a22da442985eb6eee5aa56ef4 100644
--- a/tests/compiler/dart2js_extra/consistent_subtract_error_test.dart
+++ b/tests/compiler/dart2js_extra/consistent_subtract_error_test.dart
@@ -53,12 +53,12 @@ class IntMinusNull {
   }
 
   static f5() {
-    var a = confuse(true) ? 1 : 2;  // Small int with unknown value.
+    var a = confuse(true) ? 1 : 2; // Small int with unknown value.
     return a - confuse(null);
   }
 
   static f6() {
-    var a = confuse(true) ? 1 : 2;  // Small int with unknown value.
+    var a = confuse(true) ? 1 : 2; // Small int with unknown value.
     return a - null;
   }
 
@@ -81,7 +81,7 @@ class IntMinusString {
   }
 
   static f3() {
-    var a = confuse(true) ? 1 : 2;  // Small int with unknown value.
+    var a = confuse(true) ? 1 : 2; // Small int with unknown value.
     return a - confuse('a');
   }
 
@@ -94,7 +94,7 @@ class IntMinusString {
   }
 
   static f6() {
-    var a = confuse(true) ? 1 : 2;  // Small int with unknown value.
+    var a = confuse(true) ? 1 : 2; // Small int with unknown value.
     return a - 'a';
   }