Add EvalCallExpr interface to checker, and migrate the no-return function
handler to this interface.
GRExprEngine::CheckerEvalCall() will return true if one of the checkers has
processed the node. In the future this might return void when we have some 
default checker.

llvm-svn: 90755
diff --git a/clang/lib/Analysis/GRExprEngineInternalChecks.h b/clang/lib/Analysis/GRExprEngineInternalChecks.h
index 5b7a757..90442d5 100644
--- a/clang/lib/Analysis/GRExprEngineInternalChecks.h
+++ b/clang/lib/Analysis/GRExprEngineInternalChecks.h
@@ -37,5 +37,7 @@
 void RegisterUndefBranchChecker(GRExprEngine &Eng);
 void RegisterUndefResultChecker(GRExprEngine &Eng);
 
+void RegisterNoReturnFunctionChecker(GRExprEngine &Eng);
+
 } // end clang namespace
 #endif