[kernel] Offsets on loops

pkg/kernel/binary.md

Index: pkg/kernel/binary.md
diff --git a/pkg/kernel/binary.md b/pkg/kernel/binary.md
index 840efa0ff7ae0ba91f04771e880197e507af6b40..deacc0c90d333e479d6556dabaaac1c1961908e6 100644
--- a/pkg/kernel/binary.md
+++ b/pkg/kernel/binary.md
@@ -790,18 +790,21 @@ type BreakStatement extends Statement {
 
 type WhileStatement extends Statement {
   Byte tag = 67;
+  FileOffset fileOffset;
   Expression condition;
   Statement body;
 }
 
 type DoStatement extends Statement {
   Byte tag = 68;
+  FileOffset fileOffset;
   Statement body;
   Expression condition;
 }
 
 type ForStatement extends Statement {
   Byte tag = 69;
+  FileOffset fileOffset;
   List<VariableDeclaration> variables;
   Option<Expression> condition;
   List<Expression> updates;
@@ -810,7 +813,8 @@ type ForStatement extends Statement {
 
 type ForInStatement extends Statement {
   Byte tag = 70;
-  FileOffset fileOffset; // note that this is actually the body offset
+  FileOffset fileOffset;
+  FileOffset bodyOffset;
   VariableDeclaration variable;
   Expression iterable;
   Statement body;
@@ -818,7 +822,8 @@ type ForInStatement extends Statement {
 
 type AsyncForInStatement extends Statement {
   Byte tag = 80; // Note: tag is out of order.
-  FileOffset fileOffset; // note that this is actually the body offset
+  FileOffset fileOffset;
+  FileOffset bodyOffset;
   VariableDeclaration variable;
   Expression iterable;
   Statement body;