Make sure that ParsedFunction holds onto zone handles.

runtime/vm/compiler.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/compiler.h"
 
 #include "vm/assembler.h"
 
 #include "vm/ast_printer.h"
 #include "vm/code_generator.h"
@@ skipping 417 matching lines @@
   // Skips parsing if we need to only install unoptimized code.
   if (!optimized && !Code::Handle(function.unoptimized_code()).IsNull()) {
     InstallUnoptimizedCode(function);
     isolate->set_long_jump_base(base);
     return Error::null();
   }
   if (setjmp(*jump.Set()) == 0) {
     TIMERSCOPE(time_compilation);
     Timer per_compile_timer(FLAG_trace_compiler, "Compilation time");
     per_compile_timer.Start();
-    ParsedFunction* parsed_function = new ParsedFunction(function);
+    ParsedFunction* parsed_function = new ParsedFunction(
+        Function::ZoneHandle(function.raw()));
     if (FLAG_trace_compiler) {
       OS::Print("Compiling %sfunction: '%s' @ token %"Pd"\n",
                 (optimized ? "optimized " : ""),
                 function.ToFullyQualifiedCString(),
                 function.token_pos());
     }
     Parser::ParseFunction(parsed_function);
     parsed_function->AllocateVariables();
 
     const bool success =
@@ skipping 105 matching lines @@
   if (setjmp(*jump.Set()) == 0) {
     if (FLAG_trace_compiler) {
       OS::Print("compiling expression: ");
       AstPrinter::PrintNode(fragment);
     }
 
     // Create a dummy function object for the code generator.
     // The function needs to be associated with a named Class: the interface
     // Function fits the bill.
     const char* kEvalConst = "eval_const";
-    const Function& func = Function::Handle(Function::New(
+    const Function& func = Function::ZoneHandle(Function::New(
         String::Handle(Symbols::New(kEvalConst)),
         RawFunction::kConstImplicitGetter,
         true,  // static function.
         false,  // not const function.
         false,  // not abstract
         false,  // not external.
         Class::Handle(Type::Handle(Type::Function()).type_class()),
         fragment->token_pos()));
 
     func.set_result_type(Type::Handle(Type::DynamicType()));
     func.set_num_fixed_parameters(0);
     func.SetNumOptionalParameters(0, true);
     // Manually generated AST, do not recompile.
     func.set_is_optimizable(false);
 
     // We compile the function here, even though InvokeStatic() below
     // would compile func automatically. We are checking fewer invariants
     // here.
     ParsedFunction* parsed_function = new ParsedFunction(func);
     parsed_function->SetNodeSequence(fragment);
-    parsed_function->set_default_parameter_values(Array::Handle());
+    parsed_function->set_default_parameter_values(Array::ZoneHandle());
     parsed_function->set_expression_temp_var(
         ParsedFunction::CreateExpressionTempVar(0));
     fragment->scope()->AddVariable(parsed_function->expression_temp_var());
     parsed_function->AllocateVariables();
 
     // Non-optimized code generator.
     CompileParsedFunctionHelper(*parsed_function, false);
 
     GrowableArray<const Object*> arguments;  // no arguments.
     const Array& kNoArgumentNames = Array::Handle();
     Object& result = Object::Handle();
     result = DartEntry::InvokeStatic(func,
                                      arguments,
                                      kNoArgumentNames);
     isolate->set_long_jump_base(base);
     return result.raw();
   } else {
     Object& result = Object::Handle();
     result = isolate->object_store()->sticky_error();
     isolate->object_store()->clear_sticky_error();
     isolate->set_long_jump_base(base);
     return result.raw();
   }
   UNREACHABLE();
   return Object::null();
 }
 
 }  // namespace dart