fix(DynamicParser): Correctly handle throwing exceptions from method.

Fixes dart-archive#971

Author: mvuksano

bin/parser_generator_for_spec.dart

@@ -96,6 +96,8 @@ main(arguments) {
       'map["square"] = 6',
       'method',
       'method()',
+      'causeException',
+      'causeException()',
       'notAFn()',
       'notmixed',
       'obj[0].name=1',

lib/core/parser/parser_dynamic.dart

@@ -45,11 +45,7 @@ class DynamicClosureMap implements ClosureMap {
           throw "Property '$name' is not of type function.";
         }
       } else {
-        try {
-          return reflect(o).invoke(symbol, posArgs, sNamedArgs).reflectee;
-        } on NoSuchMethodError catch (e) {
-          throw 'Undefined function $name';
-        }
+        return reflect(o).invoke(symbol, posArgs, sNamedArgs).reflectee;
       }
     };
   }

pubspec.lock

@@ -60,7 +60,7 @@ packages:
   path:
     description: path
     source: hosted
-    version: "1.1.0"
+    version: "1.2.0"
   perf_api:
     description: perf_api
     source: hosted
@@ -76,7 +76,7 @@ packages:
   stack_trace:
     description: stack_trace
     source: hosted
-    version: "0.9.3+1"
+    version: "0.9.3+2"
   unittest:
     description: unittest
     source: hosted

test.js

@@ -10,6 +10,7 @@ class TestData {
   set str(x) => _str = x;
 
   method() => "testMethod";
+  causeException() => this.x();
   sub1(a, {b: 0}) => a - b;
   sub2({a: 0, b: 0}) => a - b;
 }
@@ -435,6 +436,12 @@ main() {
         expect(context['obj'].field['key']).toEqual(4);
       });
 
+      iit('should rethrow an error from a function', () {
+        expect(() {
+          parser("causeException()").eval(new TestData());
+        }).toThrow('NoSuchMethodError: method not found: \'x\'');
+      });
+
 
       xit('should throw a nice error for type mismatch', () {
         context['obj'] = new SetterObject();