[standards] Make Flow configs use path-based imports instead of Haste

This is one of the steps unlocked by migrating RN from Haste to path-based imports. This commit sets Flow to use path-based imports by removing all of the Haste-related configuration options.

Additionally, it maps `react-native` to import from within this module to match Node's module resolution behavior. It also adds `<PROJECT_ROOT>` to the image name mapper so that the mapped name doesn't rely on Haste.

Test plan: `yarn flow-check-ios` and `yarn flow-check-android`

Author: ide

.flowconfig

@@ -11,14 +11,6 @@
 ; Ignore "BUCK" generated dirs
 <PROJECT_ROOT>/\.buckd/
 
-; Ignore unexpected extra "@providesModule"
-.*/node_modules/.*/node_modules/fbjs/.*
-
-; Ignore duplicate module providers
-; For RN Apps installed via npm, "Libraries" folder is inside
-; "node_modules/react-native" but in the source repo it is in the root
-.*/Libraries/react-native/React.js
-
 ; Ignore polyfills
 .*/Libraries/polyfills/.*
 
@@ -48,28 +40,11 @@ module.file_ext=.js
 module.file_ext=.json
 module.file_ext=.ios.js
 
-module.system=haste
-module.system.haste.use_name_reducers=true
-# keep the following in sync with server/haste/hasteImpl.js
-# get basename
-module.system.haste.name_reducers='^.*/\([a-zA-Z0-9$_.-]+\.js\(\.flow\)?\)$' -> '\1'
-# strip .js or .js.flow suffix
-module.system.haste.name_reducers='^\(.*\)\.js\(\.flow\)?$' -> '\1'
-# strip .ios suffix
-module.system.haste.name_reducers='^\(.*\)\.ios$' -> '\1'
-module.system.haste.name_reducers='^\(.*\)\.android$' -> '\1'
-module.system.haste.name_reducers='^\(.*\)\.native$' -> '\1'
-module.system.haste.paths.blacklist=.*/__tests__/.*
-module.system.haste.paths.blacklist=.*/__mocks__/.*
-module.system.haste.paths.whitelist=<PROJECT_ROOT>/Libraries/.*
-module.system.haste.paths.whitelist=<PROJECT_ROOT>/RNTester/.*
-module.system.haste.paths.whitelist=<PROJECT_ROOT>/IntegrationTests/.*
-module.system.haste.paths.blacklist=<PROJECT_ROOT>/Libraries/react-native/react-native-implementation.js
-module.system.haste.paths.blacklist=<PROJECT_ROOT>/Libraries/Animated/src/polyfills/.*
-
 munge_underscores=true
 
-module.name_mapper='^[./a-zA-Z0-9$_-]+\.\(bmp\|gif\|jpg\|jpeg\|png\|psd\|svg\|webp\|m4v\|mov\|mp4\|mpeg\|mpg\|webm\|aac\|aiff\|caf\|m4a\|mp3\|wav\|html\|pdf\)$' -> 'RelativeImageStub'
+module.name_mapper='^react-native$' -> '<PROJECT_ROOT>/Libraries/react-native/react-native-implementation'
+module.name_mapper='^react-native/\(.*\)$' -> '<PROJECT_ROOT>/\1'
+module.name_mapper='^[./a-zA-Z0-9$_-]+\.\(bmp\|gif\|jpg\|jpeg\|png\|psd\|svg\|webp\|m4v\|mov\|mp4\|mpeg\|mpg\|webm\|aac\|aiff\|caf\|m4a\|mp3\|wav\|html\|pdf\)$' -> '<PROJECT_ROOT>/Libraries/Image/RelativeImageStub'
 
 suppress_type=$FlowIssue
 suppress_type=$FlowFixMe

.flowconfig.android

@@ -11,14 +11,6 @@
 ; Ignore "BUCK" generated dirs
 <PROJECT_ROOT>/\.buckd/
 
-; Ignore unexpected extra "@providesModule"
-.*/node_modules/.*/node_modules/fbjs/.*
-
-; Ignore duplicate module providers
-; For RN Apps installed via npm, "Libraries" folder is inside
-; "node_modules/react-native" but in the source repo it is in the root
-.*/Libraries/react-native/React.js
-
 ; Ignore polyfills
 .*/Libraries/polyfills/.*
 
@@ -48,28 +40,11 @@ module.file_ext=.js
 module.file_ext=.json
 module.file_ext=.android.js
 
-module.system=haste
-module.system.haste.use_name_reducers=true
-# keep the following in sync with server/haste/hasteImpl.js
-# get basename
-module.system.haste.name_reducers='^.*/\([a-zA-Z0-9$_.-]+\.js\(\.flow\)?\)$' -> '\1'
-# strip .js or .js.flow suffix
-module.system.haste.name_reducers='^\(.*\)\.js\(\.flow\)?$' -> '\1'
-# strip .android suffix
-module.system.haste.name_reducers='^\(.*\)\.android$' -> '\1'
-module.system.haste.name_reducers='^\(.*\)\.ios$' -> '\1'
-module.system.haste.name_reducers='^\(.*\)\.native$' -> '\1'
-module.system.haste.paths.blacklist=.*/__tests__/.*
-module.system.haste.paths.blacklist=.*/__mocks__/.*
-module.system.haste.paths.whitelist=<PROJECT_ROOT>/Libraries/.*
-module.system.haste.paths.whitelist=<PROJECT_ROOT>/RNTester/.*
-module.system.haste.paths.whitelist=<PROJECT_ROOT>/IntegrationTests/.*
-module.system.haste.paths.blacklist=<PROJECT_ROOT>/Libraries/react-native/react-native-implementation.js
-module.system.haste.paths.blacklist=<PROJECT_ROOT>/Libraries/Animated/src/polyfills/.*
-
 munge_underscores=true
 
-module.name_mapper='^[./a-zA-Z0-9$_-]+\.\(bmp\|gif\|jpg\|jpeg\|png\|psd\|svg\|webp\|m4v\|mov\|mp4\|mpeg\|mpg\|webm\|aac\|aiff\|caf\|m4a\|mp3\|wav\|html\|pdf\)$' -> 'RelativeImageStub'
+module.name_mapper='^react-native$' -> '<PROJECT_ROOT>/Libraries/react-native/react-native-implementation'
+module.name_mapper='^react-native/\(.*\)$' -> '<PROJECT_ROOT>/\1'
+module.name_mapper='^[./a-zA-Z0-9$_-]+\.\(bmp\|gif\|jpg\|jpeg\|png\|psd\|svg\|webp\|m4v\|mov\|mp4\|mpeg\|mpg\|webm\|aac\|aiff\|caf\|m4a\|mp3\|wav\|html\|pdf\)$' -> '<PROJECT_ROOT>/Libraries/Image/RelativeImageStub'
 
 suppress_type=$FlowIssue
 suppress_type=$FlowFixMe