Fixes #27960

pkg/dev_compiler/lib/src/compiler/code_generator.dart

Index: pkg/dev_compiler/lib/src/compiler/code_generator.dart
diff --git a/pkg/dev_compiler/lib/src/compiler/code_generator.dart b/pkg/dev_compiler/lib/src/compiler/code_generator.dart
index f1c8f8a18b0bef109627198e288672561d769435..4036c1ae87d562dc99fc6ef69d14cc3cded1ca61 100644
--- a/pkg/dev_compiler/lib/src/compiler/code_generator.dart
+++ b/pkg/dev_compiler/lib/src/compiler/code_generator.dart
@@ -3396,7 +3396,7 @@ class CodeGenerator extends GeneralizingAstVisitor
       if (targetType is FunctionType) {
         // Call methods on function types should be handled as regular function
         // invocations.
-        return _emitFunctionCall(node);
+        return _emitFunctionCall(node, node.target);
       }
       if (targetType.isDartCoreFunction || targetType.isDynamic) {
         // TODO(vsm): Can a call method take generic type parameters?
@@ -3543,10 +3543,13 @@ class CodeGenerator extends GeneralizingAstVisitor
 
   /// Emits a function call, to a top-level function, local function, or
   /// an expression.
-  JS.Expression _emitFunctionCall(InvocationExpression node) {
-    var fn = _visit(node.function);
+  JS.Expression _emitFunctionCall(InvocationExpression node, [Expression function]) {

[Jennifer Messerly, 2016/12/01 23:20:33]

do you mind running format?

+    if (function == null) {
+      function = node.function;
+    }
+    var fn = _visit(function);
     var args = _visit(node.argumentList) as List<JS.Expression>;
-    if (isDynamicInvoke(node.function)) {
+    if (isDynamicInvoke(function)) {
       return _emitDynamicInvoke(node, fn, args);
     } else {
       return new JS.Call(_applyInvokeTypeArguments(fn, node), args);