Port TweetSearch demo to use ES modules

Replace the non-standard .pragma library style with the standard ES
modules and export statements for functions used from the outside.

Change-Id: Idd6bd0a5316edb690337b1b750c93060207d797b
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>

examples/demos/tweetsearch/content/TweetDelegate.qml

@@ -49,7 +49,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "tweetsearch.js" as Helper
+import "tweetsearch.mjs" as Helper
 
 Item {
     id: container

examples/demos/tweetsearch/content/TweetsModel.qml

@@ -49,7 +49,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "tweetsearch.js" as Helper
+import "tweetsearch.mjs" as Helper
 
 Item {
     id: wrapper

examples/demos/tweetsearch/content/tweetsearch.js → examples/demos/tweetsearch/content/tweetsearch.mjs

@@ -48,15 +48,13 @@
 **
 ****************************************************************************/
 
-.pragma library
-
-function formatDate(date)
+export function formatDate(date)
 {
     var da = new Date(date)
     return da.toDateString()
 }
 
-function demoToken()
+export function demoToken()
 {
     var a = new Array(22).join('A')
     return a + String.fromCharCode(0x44, 0x69, 0x4a, 0x52, 0x51, 0x41, 0x41, 0x41, 0x41,
@@ -83,7 +81,7 @@ function textForEntity(entity)
            (entity.screen_name ? entity.screen_name : entity.text))
 }
 
-function insertLinks(text, entities)
+export function insertLinks(text, entities)
 {
     if (typeof text !== 'string')
         return "";

examples/demos/tweetsearch/tweetsearch.pro

@@ -6,7 +6,7 @@ RESOURCES += tweetsearch.qrc
 
 OTHER_FILES = tweetsearch.qml \
               content/*.qml \
-              content/*.js \
+              content/*.mjs \
               content/resources/*
 
 target.path = $$[QT_INSTALL_EXAMPLES]/demos/tweetsearch

examples/demos/tweetsearch/tweetsearch.qml

@@ -50,7 +50,7 @@
 
 import QtQuick 2.0
 import "content"
-import "content/tweetsearch.js" as Helper
+import "content/tweetsearch.mjs" as Helper
 
 Rectangle {
     id: main

examples/demos/tweetsearch/tweetsearch.qrc

@@ -7,7 +7,7 @@
         <file>content/ListHeader.qml</file>
         <file>content/SearchDelegate.qml</file>
         <file>content/TweetDelegate.qml</file>
-        <file>content/tweetsearch.js</file>
+        <file>content/tweetsearch.mjs</file>
         <file>content/TweetsModel.qml</file>
         <file>content/resources/anonymous.png</file>
         <file>content/resources/bird-anim-sprites.png</file>