Allow a SBAddress to be created from a SBSection and an offset.

Changed the lldb.SBModule.section[<str>] property to return a single section.

Added a lldb.SBSection.addr property which returns an lldb.SBAddress object.

llvm-svn: 149755
diff --git a/lldb/scripts/Python/interface/SBModule.i b/lldb/scripts/Python/interface/SBModule.i
index d66e169..49e032d 100644
--- a/lldb/scripts/Python/interface/SBModule.i
+++ b/lldb/scripts/Python/interface/SBModule.i
@@ -320,12 +320,10 @@
                     if key < count:
                         return self.sbmodule.GetSectionAtIndex(key)
                 elif type(key) is str:
-                    matches = []
                     for idx in range(count):
                         section = self.sbmodule.GetSectionAtIndex(idx)
                         if section.name == key:
-                            matches.append(section)
-                    return matches
+                            return section
                 elif isinstance(key, self.re_compile_type):
                     matches = []
                     for idx in range(count):