support generic methods in FunctionExpressionInvocation node

pkg/analyzer/lib/src/generated/ast.dart

Index: pkg/analyzer/lib/src/generated/ast.dart
diff --git a/pkg/analyzer/lib/src/generated/ast.dart b/pkg/analyzer/lib/src/generated/ast.dart
index 694bf88705f7accb20274a14140e210ff975c419..3daca7591cec6ef2e60c754868757ea946d7b216 100644
--- a/pkg/analyzer/lib/src/generated/ast.dart
+++ b/pkg/analyzer/lib/src/generated/ast.dart
@@ -5875,6 +5875,16 @@ class FunctionExpressionInvocation extends Expression {
   ExecutableElement staticElement;
 
   /**
+   * The function type of the method invocation, or `null` if the AST
+   * structure has not been resolved, or if the invoke could not be resolved.
+   *
+   * This will usually be a [FunctionType], but it can also be an
+   * [InterfaceType] with a `call` method, `dynamic`, `Function`, or a `@proxy`
+   * interface type that implements `Function`.
+   */
+  DartType staticInvokeType;
+
+  /**
    * The element associated with the function being invoked based on propagated
    * type information, or `null` if the AST structure has not been resolved or
    * the function could not be resolved.
@@ -5882,6 +5892,11 @@ class FunctionExpressionInvocation extends Expression {
   ExecutableElement propagatedElement;
 
   /**
+   * Like [staticInvokeType], but reflects propagated type information.
+   */
+  DartType propagatedInvokeType;
+
+  /**
    * Initialize a newly created function expression invocation.
    */
   FunctionExpressionInvocation(Expression function,