libclang comments AST: clang_ParamCommandComment_getParamName: don't assert
when a \param command does not have a parameter name, just return an empty
string instead.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160638 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CXComment.cpp b/tools/libclang/CXComment.cpp
index 6cd9235..a671c24 100644
--- a/tools/libclang/CXComment.cpp
+++ b/tools/libclang/CXComment.cpp
@@ -240,7 +240,7 @@
 
 CXString clang_ParamCommandComment_getParamName(CXComment CXC) {
   const ParamCommandComment *PCC = getASTNodeAs<ParamCommandComment>(CXC);
-  if (!PCC)
+  if (!PCC || !PCC->hasParamName())
     return createCXString((const char *) 0);
 
   return createCXString(PCC->getParamName(), /*DupString=*/ false);