Better error message when missing new or const

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

Index: pkg/analyzer/lib/src/generated/error.dart
diff --git a/pkg/analyzer/lib/src/generated/error.dart b/pkg/analyzer/lib/src/generated/error.dart
index 7920a62650a4685aa4c899b7d524ca7a810221b5..e29c5dca573cbbed2cb0687211b258268c331e87 100644
--- a/pkg/analyzer/lib/src/generated/error.dart
+++ b/pkg/analyzer/lib/src/generated/error.dart
@@ -4213,6 +4213,21 @@ class StaticTypeWarningCode extends ErrorCode {
           "The method '{0}' is not defined for the class '{1}'");
 
   /**
+   * 12.15.1 Ordinary Invocation: Let <i>T</i> be the static type of <i>o</i>.
+   * It is a static type warning if <i>T</i> does not have an accessible
+   * instance member named <i>m</i>.
+   *
+   * Parameters:
+   * 0: the name of the method that is undefined
+   * 1: the resolved type name that the method lookup is happening on
+   */
+  static const StaticTypeWarningCode UNDEFINED_METHOD_WITH_CONSTRUCTOR =
+      const StaticTypeWarningCode(
+          'UNDEFINED_METHOD_WITH_CONSTRUCTOR',
+          "The method '{0}' is not defined for the class '{1}', but a constructor with that name is defined",
+          "Add 'new' or 'const' to invoke the constuctor, or change the method name.");
+
+  /**
    * 12.18 Assignment: Evaluation of an assignment of the form
    * <i>e<sub>1</sub></i>[<i>e<sub>2</sub></i>] = <i>e<sub>3</sub></i> is
    * equivalent to the evaluation of the expression (a, i, e){a.[]=(i, e);