Added slow_assert macro and flag for slow development assertions in the VM.

runtime/vm/compiler.cc

Index: runtime/vm/compiler.cc
diff --git a/runtime/vm/compiler.cc b/runtime/vm/compiler.cc
index 410929ea85931908d34b33bf39d7e0c8b8c88959..26adbdba55d65a75ff1b7932e932fbbdae100ef0 100644
--- a/runtime/vm/compiler.cc
+++ b/runtime/vm/compiler.cc
@@ -5,6 +5,8 @@
 #include "vm/compiler.h"
 
 #include "vm/assembler.h"
+
+#include "vm/assert.h"
 #include "vm/ast_printer.h"
 #include "vm/code_generator.h"
 #include "vm/code_patcher.h"
@@ -48,6 +50,7 @@ DEFINE_FLAG(int, deoptimization_counter_threshold, 5,
     " certain optimizations");
 DEFINE_FLAG(bool, use_inlining, true, "Enable call-site inlining");
 DEFINE_FLAG(bool, range_analysis, true, "Enable range analysis");
+DEFINE_FLAG(bool, slow_asserts, false, "Enable slow assertions");

[siva, 2012/10/01 23:35:40]

Ditto comment regarding slow_asserts.

 DECLARE_FLAG(bool, print_flow_graph);
 
 
@@ -181,8 +184,7 @@ static bool CompileParsedFunctionHelper(const ParsedFunction& parsed_function,
         if (FLAG_use_inlining) {
           FlowGraphInliner inliner(flow_graph);
           inliner.Inline();
-          // Verify that the use lists are still valid.
-          DEBUG_ASSERT(flow_graph->ValidateUseLists());
+          // Use lists are maintained and validated by the inliner.
         }
 
         // Propagate types and eliminate more type tests.