StyleObj -> DangerouslyImpreciseStyleProp

Summary:
Migrating everything to import from StyleSheet instead of StyleSheetTypes.

Search and replaced
```
import type {StyleObj} from 'StyleSheetTypes';
```
to
```
import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
```

and then replacing `StyleObj` with `DangerouslyImpreciseStyleProp` and fixing up the remaining flow errors by hand.

Reviewed By: yungsters

Differential Revision: D7184077

fbshipit-source-id: b8dabb9d48038b5a997ab715687300bad57aa9d4

Libraries/Components/TabBarIOS/TabBarIOS.ios.js

@@ -18,11 +18,11 @@ const ViewPropTypes = require('ViewPropTypes');
 
 const requireNativeComponent = require('requireNativeComponent');
 
-import type {StyleObj} from 'StyleSheetTypes';
+import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
 import type {ViewProps} from 'ViewPropTypes';
 
 class TabBarIOS extends React.Component<ViewProps & {
-  style?: StyleObj,
+  style?: DangerouslyImpreciseStyleProp,
   unselectedTintColor?: string,
   tintColor?: string,
   unselectedItemTintColor?: string,

Libraries/Inspector/ElementProperties.js

@@ -23,11 +23,11 @@ const flattenStyle = require('flattenStyle');
 const mapWithSeparator = require('mapWithSeparator');
 const openFileInEditor = require('openFileInEditor');
 
-import type {StyleObj} from 'StyleSheetTypes';
+import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
 
 class ElementProperties extends React.Component<{
   hierarchy: Array<$FlowFixMe>,
-  style?: StyleObj,
+  style?: DangerouslyImpreciseStyleProp,
   source?: {
     fileName?: string,
     lineNumber?: number,

Libraries/Lists/FlatList.js

@@ -18,7 +18,7 @@ const ListView = require('ListView');
 
 const invariant = require('fbjs/lib/invariant');
 
-import type {StyleObj} from 'StyleSheetTypes';
+import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
 import type {
   ViewabilityConfig,
   ViewToken,
@@ -96,7 +96,7 @@ type OptionalProps<ItemT> = {
   /**
    * Optional custom style for multi-item rows generated when numColumns > 1.
    */
-  columnWrapperStyle?: StyleObj,
+  columnWrapperStyle?: DangerouslyImpreciseStyleProp,
   /**
    * A marker property for telling the list to re-render (since it implements `PureComponent`). If
    * any of your `renderItem`, Header, Footer, etc. functions depend on anything outside of the

Libraries/Lists/VirtualizedList.js

@@ -32,7 +32,7 @@ const warning = require('fbjs/lib/warning');
 
 const {computeWindowedRenderLimits} = require('VirtualizeUtils');
 
-import type {StyleObj} from 'StyleSheetTypes';
+import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
 import type {
   ViewabilityConfig,
   ViewToken,
@@ -644,7 +644,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     stickyIndicesFromProps: Set<number>,
     first: number,
     last: number,
-    inversionStyle: ?StyleObj,
+    inversionStyle: ?DangerouslyImpreciseStyleProp,
   ) {
     const {
       CellRendererComponent,
@@ -1545,7 +1545,7 @@ class CellRenderer extends React.Component<
     fillRateHelper: FillRateHelper,
     horizontal: ?boolean,
     index: number,
-    inversionStyle: ?StyleObj,
+    inversionStyle: ?DangerouslyImpreciseStyleProp,
     item: Item,
     onLayout: (event: Object) => void, // This is extracted by ScrollViewStickyHeader
     onUnmount: (cellKey: string) => void,

Libraries/StyleSheet/StyleSheet.js

@@ -19,11 +19,11 @@ const flatten = require('flattenStyle');
 import type {
   StyleSheetStyle as _StyleSheetStyle,
   Styles as _Styles,
-  StyleObj,
+  ____StyleObj_Internal,
   LayoutStyle
 } from 'StyleSheetTypes';
 
-export type DangerouslyImpreciseStyleProp = StyleObj;
+export type DangerouslyImpreciseStyleProp = ____StyleObj_Internal;
 export type Styles = _Styles;
 export type StyleSheetStyle = _StyleSheetStyle;
 type StyleSheet<+S: Styles> = $ObjMap<S, (Object) => StyleSheetStyle>;

Libraries/StyleSheet/StyleSheetTypes.js

@@ -230,7 +230,7 @@ type GenericStyleProp<+T> =
   | ''
   | $ReadOnlyArray<GenericStyleProp<T>>;
 
-export type StyleObj = GenericStyleProp<$Shape<Style>>;
+export type ____StyleObj_Internal = GenericStyleProp<$Shape<Style>>;
 
 export type ViewStyleProp = GenericStyleProp<$ReadOnly<$Shape<ViewStyle>>>;
 export type TextStyleProp = GenericStyleProp<$ReadOnly<$Shape<TextStyle>>>;

Libraries/StyleSheet/flattenStyle.js

@@ -11,7 +11,8 @@
 
 var ReactNativePropRegistry;
 
-import type { StyleObj, Style } from 'StyleSheetTypes';
+import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
+import type { Style } from 'StyleSheetTypes';
 
 function getStyle(style) {
   if (ReactNativePropRegistry === undefined) {
@@ -23,7 +24,7 @@ function getStyle(style) {
   return style;
 }
 
-function flattenStyle(style: ?StyleObj): ?Style {
+function flattenStyle(style: ?DangerouslyImpreciseStyleProp): ?Style {
   if (style == null) {
     return undefined;
   }