Propagate breaks upwards automatically, introduce breakParent, and deprecate multilineGroup (#440)

tests/comments/__snapshots__/jsfmt.spec.js.snap

@@ -149,11 +149,16 @@ export type AsyncExecuteOptions = child_process$execFileOpts & {
 // optional trailing comma gets moved all the way to the beginning
 const regex = new RegExp(
   // optional trailing comma
-  \"^\\\\s*\" + // beginning of the line
-    \"name\\\\s*=\\\\s*\" + // name =
-    \"[\'\\\"]\" + // opening quotation mark
-    escapeStringRegExp(target.name) + // target name
-    \"[\'\\\"]\" + // closing quotation mark
+  \"^\\\\s*\" +
+    // beginning of the line
+    \"name\\\\s*=\\\\s*\" +
+    // name =
+    \"[\'\\\"]\" +
+    // opening quotation mark
+    escapeStringRegExp(target.name) +
+    // target name
+    \"[\'\\\"]\" +
+    // closing quotation mark
     \",?$\"
 );
 
@@ -345,11 +350,16 @@ export type AsyncExecuteOptions = child_process$execFileOpts & {
 // optional trailing comma gets moved all the way to the beginning
 const regex = new RegExp(
   // optional trailing comma
-  \"^\\\\s*\" + // beginning of the line
-    \"name\\\\s*=\\\\s*\" + // name =
-    \"[\'\\\"]\" + // opening quotation mark
-    escapeStringRegExp(target.name) + // target name
-    \"[\'\\\"]\" + // closing quotation mark
+  \"^\\\\s*\" +
+    // beginning of the line
+    \"name\\\\s*=\\\\s*\" +
+    // name =
+    \"[\'\\\"]\" +
+    // opening quotation mark
+    escapeStringRegExp(target.name) +
+    // target name
+    \"[\'\\\"]\" +
+    // closing quotation mark
     \",?$\"
 );
 

tests/function/__snapshots__/jsfmt.spec.js.snap

@@ -388,7 +388,8 @@ new (function() {
 (function() {
 });
 a = function f() {
-} || b;
+} ||
+  b;
 "
 `;
 

tests/refinements/__snapshots__/jsfmt.spec.js.snap

@@ -2490,7 +2490,8 @@ type Breakfast = Apple | Orange | Broccoli | Carrot;
 function bar(x: Breakfast) {
   if (x.kind === \"Fruit\") {
     (x.taste: \"Good\");
-  } // error, Apple.taste = Bad else (x.raw: \"No\"); // error, Carrot.raw = Maybe
+  } // error, Apple.taste = Bad else
+    (x.raw: \"No\"); // error, Carrot.raw = Maybe
 }
 
 function qux(x: Breakfast) {

tests/type-destructors/__snapshots__/jsfmt.spec.js.snap

@@ -17,7 +17,8 @@ function foo(x: ?string): $NonMaybeType<?string> {
 function foo(x: ?string): $NonMaybeType<?string> {
   if (x != null) {
     return x;
-  } else return 0; // this should be an error
+  } else
+    return 0; // this should be an error
 }
 
 //(foo(): string); // should not be necessary to expose the error above