Enhance data stored for macros and macro uses.

In preparation for finding macro uses.

* Macro: add offset and length
* MacroUse: add line
* Document: add convenience functions for finding a macro definition, use
  or undefined use at a given location.

Reviewed-by: Erik Verbruggen

1 files changed, 2 insertions, 0 deletions

diff --git a/src/libs/cplusplus/Macro.cpp b/src/libs/cplusplus/Macro.cpp
index 36f4318a640..e7af2db9317 100644
--- a/src/libs/cplusplus/Macro.cpp
+++ b/src/libs/cplusplus/Macro.cpp
@@ -54,6 +54,8 @@ Macro::Macro()
     : _next(0),
       _hashcode(0),
       _line(0),
+      _offset(0),
+      _length(0),
       _state(0)
 { }