[libclang] Enhance clang_Cursor_isDynamicCall and clang_Cursor_getReceiverType to handle ObjC property references

Also enhance clang_Cursor_getReceiverType to handle C++ method calls.

llvm-svn: 301568
diff --git a/clang/include/clang-c/Index.h b/clang/include/clang-c/Index.h
index 9acc9b7..c3a4822 100644
--- a/clang/include/clang-c/Index.h
+++ b/clang/include/clang-c/Index.h
@@ -3975,8 +3975,8 @@
 CINDEX_LINKAGE int clang_Cursor_isDynamicCall(CXCursor C);
 
 /**
- * \brief Given a cursor pointing to an Objective-C message, returns the CXType
- * of the receiver.
+ * \brief Given a cursor pointing to an Objective-C message or property
+ * reference, or C++ method call, returns the CXType of the receiver.
  */
 CINDEX_LINKAGE CXType clang_Cursor_getReceiverType(CXCursor C);