Adds initial support for hot reload for Fuchsia to flutter_tool. (#8764)

diff --git a/packages/flutter_tools/lib/src/build_info.dart b/packages/flutter_tools/lib/src/build_info.dart
index 8c0bcc5..52dc5cf 100644
--- a/packages/flutter_tools/lib/src/build_info.dart
+++ b/packages/flutter_tools/lib/src/build_info.dart
@@ -67,7 +67,8 @@
   ios,
   darwin_x64,
   linux_x64,
-  windows_x64
+  windows_x64,
+  fuchsia,
 }
 
 String getNameForTargetPlatform(TargetPlatform platform) {
@@ -86,6 +87,8 @@
       return 'linux-x64';
     case TargetPlatform.windows_x64:
       return 'windows-x64';
+    case TargetPlatform.fuchsia:
+      return 'fuchsia';
   }
   assert(false);
   return null;