Issue 29358. Fix for reporting constant errors while evaluating constructor invocations.

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

Index: pkg/analyzer/lib/src/error/codes.dart
diff --git a/pkg/analyzer/lib/src/error/codes.dart b/pkg/analyzer/lib/src/error/codes.dart
index 48df41b741e95b3072131ecdaf979932f813baa8..f86f0d9608e9bcf4afdf224d052966fd7011d173 100644
--- a/pkg/analyzer/lib/src/error/codes.dart
+++ b/pkg/analyzer/lib/src/error/codes.dart
@@ -51,6 +51,14 @@ class CheckedModeCompileTimeErrorCode extends ErrorCode {
           "'{1}'.");
 
   /**
+   * 16.12.2 Const: It is a compile-time error if evaluation of a constant
+   * object results in an uncaught exception being thrown.
+   */
+  static const CheckedModeCompileTimeErrorCode CONST_EVAL_THROWS_EXCEPTION =
+      const CheckedModeCompileTimeErrorCode('CONST_EVAL_THROWS_EXCEPTION',
+          "Evaluation of this constant expression throws an exception.");
+
+  /**
    * 7.6.1 Generative Constructors: In checked mode, it is a dynamic type error
    * if o is not <b>null</b> and the interface of the class of <i>o</i> is not a
    * subtype of the static type of the field <i>v</i>.