Set breakpoint at url, line number

runtime/vm/debugger.h

Index: runtime/vm/debugger.h
===================================================================
--- runtime/vm/debugger.h	(revision 3419)
+++ runtime/vm/debugger.h	(working copy)
@@ -126,6 +126,8 @@
 
   // Set breakpoint at closest location to function entry.
   Breakpoint* SetBreakpointAtEntry(const Function& target_function);
+  Breakpoint* SetBreakpointAtLine(const String& script_url,
+                                  intptr_t line_number);
 
   void VisitObjectPointers(ObjectPointerVisitor* visitor);
 
@@ -139,6 +141,8 @@
   static const char* QualifiedFunctionName(const Function& func);
 
  private:
+  Breakpoint* SetBreakpoint(const Function& target_function,
+                            intptr_t token_index);
   void AddBreakpoint(Breakpoint* bpt);
 
   bool initialized_;