Revert "Fix observatory tests broken by running dartfmt."

runtime/observatory/tests/observatory_ui/mocks/objects/icdata.dart

Index: runtime/observatory/tests/observatory_ui/mocks/objects/icdata.dart
diff --git a/runtime/observatory/tests/observatory_ui/mocks/objects/icdata.dart b/runtime/observatory/tests/observatory_ui/mocks/objects/icdata.dart
index d1474e3c463da168d4b782f6f13f212f1e2d6952..d5aec04bde60c22c236a8140ea3d9f0b4fac8655 100644
--- a/runtime/observatory/tests/observatory_ui/mocks/objects/icdata.dart
+++ b/runtime/observatory/tests/observatory_ui/mocks/objects/icdata.dart
@@ -21,13 +21,8 @@ class ICDataMock implements M.ICData {
   final M.InstanceRef argumentsDescriptor;
   final M.InstanceRef entries;
 
-  const ICDataMock(
-      {this.id: 'icdata-id',
-      this.vmName: 'icdata-vmName',
-      this.clazz: const ClassRefMock(),
-      this.size: 0,
-      this.selector,
-      this.dartOwner,
-      this.argumentsDescriptor,
-      this.entries});
+  const ICDataMock({this.id: 'icdata-id', this.vmName: 'icdata-vmName',
+                    this.clazz: const ClassRefMock(), this.size: 0,
+                    this.selector, this.dartOwner, this.argumentsDescriptor,
+                    this.entries});
 }