r175826 - Simplify code to use castAs rather than getAs + assert.

[David Blaikie]

Author: dblaikie
Date: Thu Feb 21 17:35:06 2013
New Revision: 175826

URL: http://llvm.org/viewvc/llvm-project?rev=175826&view=rev
Log:
Simplify code to use castAs rather than getAs + assert.

Post commit review feedback on r175812 from Jordan Rose.

Modified:
    cfe/trunk/lib/StaticAnalyzer/Core/PathDiagnostic.cpp

Modified: cfe/trunk/lib/StaticAnalyzer/Core/PathDiagnostic.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/StaticAnalyzer/Core/PathDiagnostic.cpp?rev=175826&r1=175825&r2=175826&view=diff
==============================================================================
--- cfe/trunk/lib/StaticAnalyzer/Core/PathDiagnostic.cpp (original)
+++ cfe/trunk/lib/StaticAnalyzer/Core/PathDiagnostic.cpp Thu Feb 21 17:35:06 2013
@@ -993,11 +993,10 @@ StackHintGenerator::~StackHintGenerator(
 
 std::string StackHintGeneratorForSymbol::getMessage(const ExplodedNode *N){
   ProgramPoint P = N->getLocation();
-  Optional<CallExitEnd> CExit = P.getAs<CallExitEnd>();
-  assert(CExit && "Stack Hints should be constructed at CallExitEnd points.");
+  CallExitEnd CExit = P.castAs<CallExitEnd>();
 
   // FIXME: Use CallEvent to abstract this over all calls.
-  const Stmt *CallSite = CExit->getCalleeContext()->getCallSite();
+  const Stmt *CallSite = CExit.getCalleeContext()->getCallSite();
   const CallExpr *CE = dyn_cast_or_null<CallExpr>(CallSite);
   if (!CE)
     return "";