Output the correct line number in the error message for compilation failures during bootstrapping

src/handles.h

Index: src/handles.h
diff --git a/src/handles.h b/src/handles.h
index aca869026e6ff5b651efd61f0aaeb1441714ad6a..6f3044cb8a8ff19e1328c1cba2e215a32b5e5938 100644
--- a/src/handles.h
+++ b/src/handles.h
@@ -246,7 +246,7 @@ Handle<FixedArray> AddKeysFromJSArray(Handle<FixedArray>,
 // if none exists.
 Handle<JSValue> GetScriptWrapper(Handle<Script> script);
 
-// Script line number computations.
+// Script line number computations. Note that the line number is zero-based.
 void InitScriptLineEnds(Handle<Script> script);
 // For string calculates an array of line end positions. If the string
 // does not end with a new line character, this character may optionally be