Android: Setting numberOfLines to 0 behaves differently than on iOS.

Summary:
**Motivation**

For the `Text` component, if `numberOfLines` is set to `0`, the behavior on iOS is such that there is no limit.

On Android, the behavior is such that `numberOfLines={0}` will not render the `Text` component.

Since we want behavior to be the same across platforms, this change will make sure Android behaves the same as iOS.

**Test Plan**

Create a `Text` component specifying `numberOfLines={0}` on an Android project.

Expected:
- `Text` component displays, with no limit to number of lines.

Result:
- `Text` component does not appear at all.
Closes #9188

Differential Revision: D3697115

fbshipit-source-id: c1768ac22bab3c0e41a9df38b7314f3201512eb2

ReactAndroid/src/main/java/com/facebook/react/views/text/ReactTextShadowNode.java

@@ -408,7 +408,7 @@ public void setText(@Nullable String text) {
 
   @ReactProp(name = ViewProps.NUMBER_OF_LINES, defaultInt = UNSET)
   public void setNumberOfLines(int numberOfLines) {
-    mNumberOfLines = numberOfLines;
+    mNumberOfLines = numberOfLines == 0 ? UNSET : numberOfLines;
     markUpdated();
   }
 

ReactAndroid/src/main/java/com/facebook/react/views/text/ReactTextViewManager.java

@@ -51,7 +51,7 @@ public ReactTextView createViewInstance(ThemedReactContext context) {
   // maxLines can only be set in master view (block), doesn't really make sense to set in a span
   @ReactProp(name = ViewProps.NUMBER_OF_LINES, defaultInt = ViewDefaults.NUMBER_OF_LINES)
   public void setNumberOfLines(ReactTextView view, int numberOfLines) {
-    view.setMaxLines(numberOfLines);
+    view.setMaxLines(numberOfLines == 0 ? ViewDefaults.NUMBER_OF_LINES : numberOfLines);
     view.setEllipsize(TextUtils.TruncateAt.END);
   }