Add SWIG interface files for SBSymbol, SBSymbolContext, and SBSymbolContextList.


git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@135459 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/scripts/Python/interface/SBFrame.i b/scripts/Python/interface/SBFrame.i
index eb17a09..bf33b6f 100644
--- a/scripts/Python/interface/SBFrame.i
+++ b/scripts/Python/interface/SBFrame.i
@@ -11,7 +11,33 @@
 
 %feature("docstring",
 "Represents one of the stack frames associated with a thread.
-SBThread contains SBFrame(s)."
+SBThread contains SBFrame(s). For example (from test/lldbutil.py),
+
+def print_stacktrace(thread, string_buffer = False):
+    '''Prints a simple stack trace of this thread.'''
+
+    ...
+
+    for i in range(depth):
+        frame = thread.GetFrameAtIndex(i)
+        function = frame.GetFunction()
+
+        load_addr = addrs[i].GetLoadAddress(target)
+        if not function:
+            file_addr = addrs[i].GetFileAddress()
+            start_addr = frame.GetSymbol().GetStartAddress().GetFileAddress()
+            symbol_offset = file_addr - start_addr
+            print >> output, '  frame #{num}: {addr:#016x} {mod}`{symbol} + {offset}'.format(
+                num=i, addr=load_addr, mod=mods[i], symbol=symbols[i], offset=symbol_offset)
+        else:
+            print >> output, '  frame #{num}: {addr:#016x} {mod}`{func} at {file}:{line} {args}'.format(
+                num=i, addr=load_addr, mod=mods[i],
+                func='%s [inlined]' % funcs[i] if frame.IsInlined() else funcs[i],
+                file=files[i], line=lines[i],
+                args=get_args_as_string(frame, showFuncName=False) if not frame.IsInlined() else '()')
+
+    ...
+"
 ) SBFrame;
 class SBFrame
 {