Fix GetDisplayName when only a demangled name is available

Summary:
GetDisplayDemangledName will already return a ConstString() when
there is neither a mangled name or a demangled name, so we don't need to special
case here. This will fix GetDisplayName in cases where m_mangled contains
only a demangled name and not a mangled name.

Reviewers: clayborg, granata.enrico, sas

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D25201

llvm-svn: 283491

lldb/source/Symbol/Function.cpp

@@ -347,8 +347,6 @@ bool Function::IsTopLevelFunction() {
 }
 
 ConstString Function::GetDisplayName() const {
-  if (!m_mangled)
-    return ConstString();
   return m_mangled.GetDisplayDemangledName(GetLanguage());
 }