Roll Observatory deps (charted -> ^0.3.0)

packages/dart_style/test/splitting/loops.stmt

 40 columns                              |
 >>> do not split before first clause
 for (extremelyReallyQuiteVeryLongFirstClause; second; third) {}
 <<<
 for (extremelyReallyQuiteVeryLongFirstClause;
     second;
     third) {}
 >>> split after first clause
 for (veryLongFirstClause; veryLongSecondClause; third) {}
 <<<
@@ skipping 65 matching lines @@
 }
 >>> don't force updates to split if clauses do
 for (var a = 0; longCondition(expression); a += 1, b += 1) {
   ;
 }
 <<<
 for (var a = 0;
     longCondition(expression);
     a += 1, b += 1) {
   ;
-}
+}
+>>> single line for without curlies
+for (i = 0; i < 10; i++) something(i);
+<<<
+for (i = 0; i < 10; i++) something(i);
+>>> multi-line for without curlies
+for (i = 0; i < 10; i++) somethingLonger(i);
+<<<
+for (i = 0; i < 10; i++)
+  somethingLonger(i);
+>>> single line for-in without curlies
+for (i in sequence) something(i);
+<<<
+for (i in sequence) something(i);
+>>> multi-line for-in without curlies
+for (i in sequence) somethingMuchLonger(i);
+<<<
+for (i in sequence)
+  somethingMuchLonger(i);
+>>> single line while without curlies
+while (condition) something(i);
+<<<
+while (condition) something(i);
+>>> multi-line while without curlies
+while (condition) somethingMuchLonger(i);
+<<<
+while (condition)
+  somethingMuchLonger(i);