Revert "Use CodeSourceMap for stack traces (still JIT only)."

runtime/vm/object.h

Index: runtime/vm/object.h
diff --git a/runtime/vm/object.h b/runtime/vm/object.h
index 89901f7948cbf3f342b6d6705a10dc62dad46a06..69dc8146685755d55607dc1a7175e4df918de61e 100644
--- a/runtime/vm/object.h
+++ b/runtime/vm/object.h
@@ -4784,20 +4784,10 @@ class Code : public Object {
   // function except the top-of-stack is the position of the call to the next
   // function. The stack will be empty if we lack the metadata to produce it,
   // which happens for stub code.
-  // The pc offset is interpreted as an instruction address (as needed by the
-  // disassembler or the top frame of a profiler sample).
-  void GetInlinedFunctionsAtInstruction(
+  void GetInlinedFunctionsAt(
       intptr_t pc_offset,
       GrowableArray<const Function*>* functions,
       GrowableArray<TokenPosition>* token_positions) const;
-  // Same as above, expect the pc is intepreted as a return address (as needed
-  // for a stack trace or the bottom frames of a profiler sample).
-  void GetInlinedFunctionsAtReturnAddress(
-      intptr_t pc_offset,
-      GrowableArray<const Function*>* functions,
-      GrowableArray<TokenPosition>* token_positions) const {
-    GetInlinedFunctionsAtInstruction(pc_offset - 1, functions, token_positions);
-  }
 
   NOT_IN_PRODUCT(void PrintJSONInlineIntervals(JSONObject* object) const);
   void DumpInlineIntervals() const;
@@ -8398,6 +8388,8 @@ class StackTrace : public Instance {
 
   intptr_t Length() const;
 
+  RawFunction* FunctionAtFrame(intptr_t frame_index) const;
+
   RawCode* CodeAtFrame(intptr_t frame_index) const;
   void SetCodeAtFrame(intptr_t frame_index, const Code& code) const;