[fuchsia] Make profile processing resilient to bogus overlaps from dladdr.

runtime/vm/profiler_service.h

 // Copyright (c) 2015, 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.
 
 #ifndef RUNTIME_VM_PROFILER_SERVICE_H_
 #define RUNTIME_VM_PROFILER_SERVICE_H_
 
 #include "vm/allocation.h"
 #include "vm/code_observers.h"
 #include "vm/globals.h"
@@ skipping 153 matching lines @@
               const Code& code);
 
   Kind kind() const { return kind_; }
 
   uword start() const { return start_; }
   void set_start(uword start) { start_ = start; }
 
   uword end() const { return end_; }
   void set_end(uword end) { end_ = end; }
 
-  void AdjustExtent(uword start, uword end);
+  void ExpandLower(uword start);
+  void ExpandUpper(uword end);
+  void TruncateLower(uword start);
+  void TruncateUpper(uword end);
 
   bool Contains(uword pc) const { return (pc >= start_) && (pc < end_); }
 
   bool Overlaps(const ProfileCode* other) const;
 
   int64_t compile_timestamp() const { return compile_timestamp_; }
   void set_compile_timestamp(int64_t timestamp) {
     compile_timestamp_ = timestamp;
   }
 
@@ skipping 269 matching lines @@
                             JSONStream* stream,
                             Profile::TagOrder tag_order,
                             intptr_t extra_tags,
                             SampleFilter* filter,
                             bool as_timline);
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_PROFILER_SERVICE_H_