Add the FullExprArg wrapper and use it for if statement conditions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71982 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/Sema.h b/lib/Sema/Sema.h
index 9a12dfd..c489049 100644
--- a/lib/Sema/Sema.h
+++ b/lib/Sema/Sema.h
@@ -1172,9 +1172,9 @@
                                           IdentifierInfo *II,
                                           SourceLocation ColonLoc,
                                           StmtArg SubStmt);
-  virtual OwningStmtResult ActOnIfStmt(SourceLocation IfLoc, ExprArg CondVal,
-                                       StmtArg ThenVal, SourceLocation ElseLoc,
-                                       StmtArg ElseVal);
+  virtual OwningStmtResult ActOnIfStmt(SourceLocation IfLoc, 
+                                       FullExprArg CondVal, StmtArg ThenVal, 
+                                       SourceLocation ElseLoc, StmtArg ElseVal);
   virtual OwningStmtResult ActOnStartOfSwitchStmt(ExprArg Cond);
   virtual OwningStmtResult ActOnFinishSwitchStmt(SourceLocation SwitchLoc,
                                                  StmtArg Switch, StmtArg Body);