Add annotations to prepare for fully resolved environment

Summary: Changelog: [internal]

Reviewed By: samwgoldman

Differential Revision: D37469106

fbshipit-source-id: a28fc3f8a5947bb09a808a4162080c3fe6bfb1f5

Author: SamChou19815

Libraries/Inspector/ElementBox.js

@@ -26,7 +26,7 @@ class ElementBox extends React.Component<$FlowFixMeProps> {
     let padding = resolveBoxStyle('padding', style);
 
     const frameStyle = {...this.props.frame};
-    const contentStyle = {
+    const contentStyle: {width: number, height: number} = {
       width: this.props.frame.width,
       height: this.props.frame.height,
     };

Libraries/Interaction/PanResponder.js

@@ -190,6 +190,21 @@ type ActiveCallback = (
 
 type PassiveCallback = (event: PressEvent, gestureState: GestureState) => mixed;
 
+type PanHandlers = {|
+  onMoveShouldSetResponder: (event: PressEvent) => boolean,
+  onMoveShouldSetResponderCapture: (event: PressEvent) => boolean,
+  onResponderEnd: (event: PressEvent) => void,
+  onResponderGrant: (event: PressEvent) => boolean,
+  onResponderMove: (event: PressEvent) => void,
+  onResponderReject: (event: PressEvent) => void,
+  onResponderRelease: (event: PressEvent) => void,
+  onResponderStart: (event: PressEvent) => void,
+  onResponderTerminate: (event: PressEvent) => void,
+  onResponderTerminationRequest: (event: PressEvent) => boolean,
+  onStartShouldSetResponder: (event: PressEvent) => boolean,
+  onStartShouldSetResponderCapture: (event: PressEvent) => boolean,
+|};
+
 type PanResponderConfig = $ReadOnly<{|
   onMoveShouldSetPanResponder?: ?ActiveCallback,
   onMoveShouldSetPanResponderCapture?: ?ActiveCallback,
@@ -385,20 +400,7 @@ const PanResponder = {
    */
   create(config: PanResponderConfig): $TEMPORARY$object<{|
     getInteractionHandle: () => ?number,
-    panHandlers: $TEMPORARY$object<{|
-      onMoveShouldSetResponder: (event: PressEvent) => boolean,
-      onMoveShouldSetResponderCapture: (event: PressEvent) => boolean,
-      onResponderEnd: (event: PressEvent) => void,
-      onResponderGrant: (event: PressEvent) => boolean,
-      onResponderMove: (event: PressEvent) => void,
-      onResponderReject: (event: PressEvent) => void,
-      onResponderRelease: (event: PressEvent) => void,
-      onResponderStart: (event: PressEvent) => void,
-      onResponderTerminate: (event: PressEvent) => void,
-      onResponderTerminationRequest: (event: PressEvent) => boolean,
-      onStartShouldSetResponder: (event: PressEvent) => boolean,
-      onStartShouldSetResponderCapture: (event: PressEvent) => boolean,
-    |}>,
+    panHandlers: PanHandlers,
   |}> {
     const interactionState = {
       handle: (null: ?number),