code review 37540043: runtime: heap dump experiment

src/pkg/runtime/runtime.h

 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 /*
  * basic types
  */
 typedef signed char             int8;
 typedef unsigned char           uint8;
 typedef signed short            int16;
@@ skipping 932 matching lines @@
 void**  runtime·netpolluser(PollDesc*);
 bool    runtime·netpollclosing(PollDesc*);
 void    runtime·netpolllock(PollDesc*);
 void    runtime·netpollunlock(PollDesc*);
 void    runtime·crash(void);
 void    runtime·parsedebugvars(void);
 void    _rt0_go(void);
 void*   runtime·funcdata(Func*, int32);
 int32   runtime·setmaxthreads(int32);
 G*      runtime·timejump(void);
+void    runtime·iterate_itabs(void (*callback)(Itab*));
+void    runtime·iterate_finq(void (*callback)(FuncVal*, byte*, uintptr, Type*, PtrType*));
 
 #pragma varargck        argpos  runtime·printf  1
 #pragma varargck        type    "c"     int32
 #pragma varargck        type    "d"     int32
 #pragma varargck        type    "d"     uint32
 #pragma varargck        type    "D"     int64
 #pragma varargck        type    "D"     uint64
 #pragma varargck        type    "x"     int32
 #pragma varargck        type    "x"     uint32
 #pragma varargck        type    "X"     int64
@@ skipping 167 matching lines @@
 extern float64 runtime·neginf;
 extern uint64 ·nan;
 extern uint64 ·posinf;
 extern uint64 ·neginf;
 #define ISNAN(f) ((f) != (f))
 
 enum
 {
         UseSpanType = 1,
 };