Uniform and precise source positions for inlining

src/compiler/bytecode-graph-builder.h

Index: src/compiler/bytecode-graph-builder.h
diff --git a/src/compiler/bytecode-graph-builder.h b/src/compiler/bytecode-graph-builder.h
index d2feb93a201defcdfbf7b6c67e15d374ad6f25f4..79f98d6b904be6d677494a6180d8ad0df2995b40 100644
--- a/src/compiler/bytecode-graph-builder.h
+++ b/src/compiler/bytecode-graph-builder.h
@@ -9,7 +9,6 @@
 #include "src/compiler/bytecode-loop-analysis.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/liveness-analyzer.h"
-#include "src/compiler/source-position.h"
 #include "src/compiler/state-values-utils.h"
 #include "src/compiler/type-hint-analyzer.h"
 #include "src/interpreter/bytecode-array-iterator.h"
@@ -24,13 +23,16 @@ class CompilationInfo;
 
 namespace compiler {
 
+class SourcePositionTable;
+
 // The BytecodeGraphBuilder produces a high-level IR graph based on
 // interpreter bytecodes.
 class BytecodeGraphBuilder {
  public:
   BytecodeGraphBuilder(Zone* local_zone, CompilationInfo* info,
                        JSGraph* jsgraph, float invocation_frequency,
-                       SourcePositionTable* source_positions);
+                       SourcePositionTable* source_positions,
+                       int inlining_id = SourcePosition::kNotInlined);
 
   // Creates a graph by visiting bytecodes.
   bool CreateGraph(bool stack_check = true);
@@ -317,6 +319,8 @@ class BytecodeGraphBuilder {
   // The Turbofan source position table, to be populated.
   SourcePositionTable* source_positions_;
 
+  SourcePosition const start_position_;
+
   // Update [source_positions_]'s current position to that of the bytecode at
   // [offset], if any.
   void UpdateCurrentSourcePosition(SourcePositionTableIterator* it, int offset);