Fix setting breakpoint in non-finalized class

tests/standalone/debugger/local_function_test.dart

Index: tests/standalone/debugger/local_function_test.dart
===================================================================
--- tests/standalone/debugger/local_function_test.dart	(revision 31442)
+++ tests/standalone/debugger/local_function_test.dart	(working copy)
@@ -14,16 +14,38 @@
 // Check that if a breakpoint is requested on the line containing the
 // one-liner with a local function below, the breakpoint gets set in
 // the outer function.
-foo(x) => (n) => x * n;
+foo(x) => (n) => x * n;  // Breakpoint 1 on this line.
 
 // Check that if a breakpoint is requested on the line "return n*x"
 // below, the breakpoint is set in the local function (closure).
 bar(x) {
   return (n) {
-    return n * x;
+    return n * x;  // Breakpoint 2 on this line.
   };
 }
 
+// Check that setting a breakpoint works in the case where the
+// class has not been parsed yet.
+// No reference to class C must appear in main(), so that the class is not
+// yet parsed when the breakpoint in the closure nested in the constructor
+// is set.
+class C {
+  var closure;
+  C() {
+    closure = () {
+      var z = 10;  // Breakpoint 3 on this line.
+      z = z * 2;
+      return z;
+    };
+  }
+}
+
+checkBpInLazilyParsedClass() {
+  var c = new C();
+  c.closure(); // Expected to hit breakpoint.
+}
+
+
 main(List<String> arguments) {
   if (RunScript(testScript, arguments)) return;
   print("Hello from debuggee");
@@ -31,16 +53,20 @@
   print(f(5));
   var b = bar(10);
   print(b(10)); // Hits breakpoint.
+  checkBpInLazilyParsedClass();
 }
 
 // Expected debugger events and commands.
 var testScript = [
   MatchFrame(0, "main"),  // Top frame in trace is function "main".
-  SetBreakpoint(17),      // Set breakpoint in function foo.
-  SetBreakpoint(23),      // Set breakpoint in local function inside bar.
+  SetBreakpoint(17),      // Breakpoint 1 in function foo.
+  SetBreakpoint(23),      // Breakpoint 2 in local function inside bar.
+  SetBreakpoint(36),      // Breakpoint 3 in local function inside constructor C.
   Resume(),
   MatchFrames(["foo", "main"]),
   Resume(),
   MatchFrames(["<anonymous closure>", "main"]),
-  Resume()
+  Resume(),
+  MatchFrames(["C.<anonymous closure>", "checkBpInLazilyParsedClass"]),
+  Resume(),
 ];