SBSection supports iteration through its subsections, represented as SBSection as well.
SBModule supports an additional SBSection iteration, besides the original SBSymbol iteration.
Add docstrings and implement the two SBSection iteration protocols.


git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@140449 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/scripts/Python/interface/SBSection.i b/scripts/Python/interface/SBSection.i
index a206b34..990a705 100644
--- a/scripts/Python/interface/SBSection.i
+++ b/scripts/Python/interface/SBSection.i
@@ -10,7 +10,10 @@
 namespace lldb {
 
 %feature("docstring",
-"Represents an executable image section."
+"Represents an executable image section.
+
+SBSection supports iteration through its subsection, represented as SBSection
+as well."
 ) SBSection;
 
 class SBSection