Clear exceptions set during attempts to lazily optimize.

src/hydrogen.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 4002 matching lines @@
   }
 
   int count_before = AstNode::Count();
 
   // Parse and allocate variables.
   CompilationInfo inner_info(target);
   if (!ParserApi::Parse(&inner_info) ||
       !Scope::Analyze(&inner_info)) {
     if (Top::has_pending_exception()) {
       SetStackOverflow();
+      // Stop trying to optimize and inline this function.
+      target->shared()->set_optimization_disabled(true);
     }
     return false;
   }
   FunctionLiteral* function = inner_info.function();
 
   // Count the number of AST nodes added by inlining this call.
   int nodes_added = AstNode::Count() - count_before;
   if (FLAG_limit_inlining && nodes_added > kMaxInlinedSize) {
     if (FLAG_trace_inlining) TraceInline(target, false);
     return false;
@@ skipping 2008 matching lines @@
     }
   }
 
 #ifdef DEBUG
   if (graph_ != NULL) graph_->Verify();
   if (allocator_ != NULL) allocator_->Verify();
 #endif
 }
 
 } }  // namespace v8::internal