Build flutter_gallery with bitcode (#39851)

.cirrus.yml

@@ -408,7 +408,7 @@ task:
     # Apple Certificates Match Passphrase
     MATCH_PASSWORD: ENCRYPTED[db07f252234397090e3ec59152d9ec1831f5ecd0ef97d247b1dca757bbb9ef9b7c832a39bce2caf1949ccdf097e59a73]
   osx_instance:
-    image: mojave-xcode-10.1
+    image: mojave-xcode-10.2
   # occasionally the clock on these machines is out of sync
   # with the actual time - this should help to verify
   print_date_script:
@@ -428,7 +428,7 @@ task:
 task:
   use_compute_credits: $CIRRUS_USER_COLLABORATOR == 'true'
   osx_instance:
-    image: mojave-xcode-10.1
+    image: mojave-xcode-10.2
   depends_on:
     - analyze
   env:

examples/flutter_gallery/ios/Podfile

@@ -44,7 +44,6 @@ post_install do |installer|
   installer.pods_project.targets.each do |target|
     target.build_configurations.each do |config|
       config.build_settings['PROVISIONING_PROFILE_SPECIFIER'] = ''
-      config.build_settings['ENABLE_BITCODE'] = 'NO'
     end
   end
-end
\ No newline at end of file
+end

examples/flutter_gallery/ios/Runner.xcodeproj/project.pbxproj

@@ -370,7 +370,6 @@
 			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
 					"$(PROJECT_DIR)/Flutter",
@@ -497,7 +496,6 @@
 			baseConfigurationReference = 9740EEB21CF90195004384FC /* Debug.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
 					"$(PROJECT_DIR)/Flutter",
@@ -518,7 +516,6 @@
 			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
 					"$(PROJECT_DIR)/Flutter",

examples/stocks/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>