some spaces formatting (#29452)

* some space formattings

* always use blocks in if-else if a block is used

* format spaces in for and while

* allow multiline if conditions

* fix missing space

packages/flutter_tools/lib/src/vmservice.dart

diff --git a/packages/flutter_tools/lib/src/vmservice.dart b/packages/flutter_tools/lib/src/vmservice.dart
index e2c2890..545e773 100644
--- a/packages/flutter_tools/lib/src/vmservice.dart
+++ b/packages/flutter_tools/lib/src/vmservice.dart
@@ -352,7 +352,7 @@
   Future<void> _streamListen(String streamId) async {
     if (!_listeningFor.contains(streamId)) {
       _listeningFor.add(streamId);
-      await _sendRequest('streamListen', <String, dynamic>{ 'streamId': streamId });
+      await _sendRequest('streamListen', <String, dynamic>{'streamId': streamId});
     }
   }
 
@@ -873,7 +873,7 @@
 
   /// Create a new development file system on the device.
   Future<Map<String, dynamic>> createDevFS(String fsName) {
-    return invokeRpcRaw('_createDevFS', params: <String, dynamic> { 'fsName': fsName });
+    return invokeRpcRaw('_createDevFS', params: <String, dynamic> {'fsName': fsName});
   }
 
   /// List the development file system son the device.
@@ -913,12 +913,12 @@
 
   /// The complete list of a file system.
   Future<List<String>> listDevFSFiles(String fsName) async {
-    return (await invokeRpcRaw('_listDevFSFiles', params: <String, dynamic>{ 'fsName': fsName }))['files'];
+    return (await invokeRpcRaw('_listDevFSFiles', params: <String, dynamic>{'fsName': fsName}))['files'];
   }
 
   /// Delete an existing file system.
   Future<Map<String, dynamic>> deleteDevFS(String fsName) {
-    return invokeRpcRaw('_deleteDevFS', params: <String, dynamic>{ 'fsName': fsName });
+    return invokeRpcRaw('_deleteDevFS', params: <String, dynamic>{'fsName': fsName});
   }
 
   Future<ServiceMap> runInView(
@@ -1273,7 +1273,7 @@
     if (state != null && state.containsKey('enabled') && state['enabled'] is String) {
       state = await invokeFlutterExtensionRpcRaw(
         'ext.flutter.$name',
-        params: <String, dynamic>{ 'enabled': state['enabled'] == 'true' ? 'false' : 'true' },
+        params: <String, dynamic>{'enabled': state['enabled'] == 'true' ? 'false' : 'true'},
       );
     }
     return state;
@@ -1288,7 +1288,7 @@
   Future<Map<String, dynamic>> flutterDebugAllowBanner(bool show) {
     return invokeFlutterExtensionRpcRaw(
       'ext.flutter.debugAllowBanner',
-      params: <String, dynamic>{ 'enabled': show ? 'true' : 'false' },
+      params: <String, dynamic>{'enabled': show ? 'true' : 'false'},
     );
   }
 
@@ -1331,7 +1331,7 @@
   Future<String> flutterPlatformOverride([ String platform ]) async {
     final Map<String, dynamic> result = await invokeFlutterExtensionRpcRaw(
       'ext.flutter.platformOverride',
-      params: platform != null ? <String, dynamic>{ 'value': platform } : <String, String>{},
+      params: platform != null ? <String, dynamic>{'value': platform} : <String, String>{},
     );
     if (result != null && result['value'] is String)
       return result['value'];