Uniform and precise source positions for inlining

src/compiler/instruction.h

Index: src/compiler/instruction.h
diff --git a/src/compiler/instruction.h b/src/compiler/instruction.h
index 5d8864eea7d006197a54c19d6e44b6f7cbf2dd62..d9e1db1d6349cfadffa1ba7c1faa27ca284184a8 100644
--- a/src/compiler/instruction.h
+++ b/src/compiler/instruction.h
@@ -15,7 +15,6 @@
 #include "src/compiler/frame.h"
 #include "src/compiler/instruction-codes.h"
 #include "src/compiler/opcodes.h"
-#include "src/compiler/source-position.h"
 #include "src/globals.h"
 #include "src/macro-assembler.h"
 #include "src/register-configuration.h"
@@ -23,10 +22,13 @@
 
 namespace v8 {
 namespace internal {
+
+class SourcePosition;
+
 namespace compiler {
 
-// Forward declarations.
 class Schedule;
+class SourcePositionTable;
 
 class V8_EXPORT_PRIVATE InstructionOperand {
  public: