Use fbsource clang-format config

Summary:
This mirrors the clang-format config used by fbsource to Yoga.

They are pretty similar, except for an annoying habit where Yoga's previous forced small functions in headers to be a a single line, so you would get a combination of multiline and single line functions next to each other which are hard to read. That is what motivated this change.

It also enforces header ordering (yay). I don't think we have any side-effect causing headers, so this should be safe.

Reviewed By: yungsters

Differential Revision: D49248994

fbshipit-source-id: 66998395e7c0158ff9d9fb1bee44e8401bdd8f21

tests/YGMeasureModeTest.cpp

@@ -27,7 +27,7 @@ static YGSize _measure(
     float height,
     YGMeasureMode heightMode) {
   struct _MeasureConstraintList* constraintList =
-      (struct _MeasureConstraintList*) YGNodeGetContext(node);
+      (struct _MeasureConstraintList*)YGNodeGetContext(node);
   struct _MeasureConstraint* constraints = constraintList->constraints;
   uint32_t currentIndex = constraintList->length;
   (&constraints[currentIndex])->width = width;
@@ -45,7 +45,7 @@ static YGSize _measure(
 TEST(YogaTest, exactly_measure_stretched_child_column) {
   struct _MeasureConstraintList constraintList = _MeasureConstraintList{
       0,
-      (struct _MeasureConstraint*) malloc(
+      (struct _MeasureConstraint*)malloc(
           10 * sizeof(struct _MeasureConstraint)),
   };
 
@@ -72,7 +72,7 @@ TEST(YogaTest, exactly_measure_stretched_child_column) {
 TEST(YogaTest, exactly_measure_stretched_child_row) {
   struct _MeasureConstraintList constraintList = _MeasureConstraintList{
       0,
-      (struct _MeasureConstraint*) malloc(
+      (struct _MeasureConstraint*)malloc(
           10 * sizeof(struct _MeasureConstraint)),
   };
 
@@ -100,7 +100,7 @@ TEST(YogaTest, exactly_measure_stretched_child_row) {
 TEST(YogaTest, at_most_main_axis_column) {
   struct _MeasureConstraintList constraintList = _MeasureConstraintList{
       0,
-      (struct _MeasureConstraint*) malloc(
+      (struct _MeasureConstraint*)malloc(
           10 * sizeof(struct _MeasureConstraint)),
   };
 
@@ -127,7 +127,7 @@ TEST(YogaTest, at_most_main_axis_column) {
 TEST(YogaTest, at_most_cross_axis_column) {
   struct _MeasureConstraintList constraintList = _MeasureConstraintList{
       0,
-      (struct _MeasureConstraint*) malloc(
+      (struct _MeasureConstraint*)malloc(
           10 * sizeof(struct _MeasureConstraint)),
   };
 
@@ -155,7 +155,7 @@ TEST(YogaTest, at_most_cross_axis_column) {
 TEST(YogaTest, at_most_main_axis_row) {
   struct _MeasureConstraintList constraintList = _MeasureConstraintList{
       0,
-      (struct _MeasureConstraint*) malloc(
+      (struct _MeasureConstraint*)malloc(
           10 * sizeof(struct _MeasureConstraint)),
   };
 
@@ -183,7 +183,7 @@ TEST(YogaTest, at_most_main_axis_row) {
 TEST(YogaTest, at_most_cross_axis_row) {
   struct _MeasureConstraintList constraintList = _MeasureConstraintList{
       0,
-      (struct _MeasureConstraint*) malloc(
+      (struct _MeasureConstraint*)malloc(
           10 * sizeof(struct _MeasureConstraint)),
   };
 
@@ -212,7 +212,7 @@ TEST(YogaTest, at_most_cross_axis_row) {
 TEST(YogaTest, flex_child) {
   struct _MeasureConstraintList constraintList = _MeasureConstraintList{
       0,
-      (struct _MeasureConstraint*) malloc(
+      (struct _MeasureConstraint*)malloc(
           10 * sizeof(struct _MeasureConstraint)),
   };
 
@@ -242,7 +242,7 @@ TEST(YogaTest, flex_child) {
 TEST(YogaTest, flex_child_with_flex_basis) {
   struct _MeasureConstraintList constraintList = _MeasureConstraintList{
       0,
-      (struct _MeasureConstraint*) malloc(
+      (struct _MeasureConstraint*)malloc(
           10 * sizeof(struct _MeasureConstraint)),
   };
 
@@ -270,7 +270,7 @@ TEST(YogaTest, flex_child_with_flex_basis) {
 TEST(YogaTest, overflow_scroll_column) {
   struct _MeasureConstraintList constraintList = _MeasureConstraintList{
       0,
-      (struct _MeasureConstraint*) malloc(
+      (struct _MeasureConstraint*)malloc(
           10 * sizeof(struct _MeasureConstraint)),
   };
 
@@ -302,7 +302,7 @@ TEST(YogaTest, overflow_scroll_column) {
 TEST(YogaTest, overflow_scroll_row) {
   struct _MeasureConstraintList constraintList = _MeasureConstraintList{
       0,
-      (struct _MeasureConstraint*) malloc(
+      (struct _MeasureConstraint*)malloc(
           10 * sizeof(struct _MeasureConstraint)),
   };