Issue 27536. Quick Fix for 'Avoid using braces in interpolation when not needed'.

pkg/analysis_server/lib/src/services/correction/fix_internal.dart

Index: pkg/analysis_server/lib/src/services/correction/fix_internal.dart
diff --git a/pkg/analysis_server/lib/src/services/correction/fix_internal.dart b/pkg/analysis_server/lib/src/services/correction/fix_internal.dart
index f0e2c0a2ea8238fea80f5d5c9502787a88ec1ba4..39f96e73dcaf0b93c94927ac57fbe28b75bb913a 100644
--- a/pkg/analysis_server/lib/src/services/correction/fix_internal.dart
+++ b/pkg/analysis_server/lib/src/services/correction/fix_internal.dart
@@ -365,6 +365,9 @@ class FixProcessor {
       if (errorCode.name == LintNames.annotate_overrides) {
         _addLintFixAddOverrideAnnotation();
       }
+      if (errorCode.name == LintNames.unnecessary_brace_in_string_interp) {
+        _addLintRemoveInterpolationBraces();
+      }
     }
     // done
     return fixes;
@@ -2289,6 +2292,18 @@ class FixProcessor {
     _addFix(DartFixKind.LINT_ADD_OVERRIDE, []);
   }
 
+  void _addLintRemoveInterpolationBraces() {

[Brian Wilkerson, 2016/10/07 18:57:56]

Remove "Lint" from the name? I don't think it adds anything.

+    AstNode node = this.node;
+    if (node is InterpolationExpression) {
+      Token right = node.rightBracket;
+      if (node.expression != null && right != null) {
+        _addReplaceEdit(rf.rangeStartStart(node, node.expression), r'$');
+        _addRemoveEdit(rf.rangeToken(right));
+        _addFix(DartFixKind.LINT_REMOVE_INTERPOLATION_BRACES, []);
+      }
+    }
+  }
+
   /**
    * Prepares proposal for creating function corresponding to the given
    * [FunctionType].
@@ -2905,6 +2920,8 @@ class FixProcessor {
  */
 class LintNames {
   static const String annotate_overrides = 'annotate_overrides';
+  static const String unnecessary_brace_in_string_interp =
+      'unnecessary_brace_in_string_interp';
 }
 
 /**