Add support for C++'s "type-specifier ( expression-list )" expression:

-The Parser calls a new "ActOnCXXTypeConstructExpr" action.
-Sema, depending on the type and expressions number:
   -If the type is a class, it will treat it as a class constructor. [TODO]
   -If there's only one expression (i.e. "int(0.5)" ), creates a new "CXXFunctionalCastExpr" Expr node
   -If there are no expressions (i.e "int()" ), creates a new "CXXZeroInitValueExpr" Expr node.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55177 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/Sema.h b/lib/Sema/Sema.h
index 4bb5482..321471d 100644
--- a/lib/Sema/Sema.h
+++ b/lib/Sema/Sema.h
@@ -559,6 +559,18 @@
   virtual ExprResult ActOnCXXThrow(SourceLocation OpLoc,
                                    ExprTy *expr);
 
+  /// ActOnCXXTypeConstructExpr - Parse construction of a specified type.
+  /// Can be interpreted either as function-style casting ("int(x)")
+  /// or class type construction ("ClassType(x,y,z)")
+  /// or creation of a value-initialized type ("int()").
+  virtual ExprResult ActOnCXXTypeConstructExpr(SourceRange TypeRange,
+                                               TypeTy *TypeRep,
+                                               SourceLocation LParenLoc,
+                                               ExprTy **Exprs,
+                                               unsigned NumExprs,
+                                               SourceLocation *CommaLocs,
+                                               SourceLocation RParenLoc);
+
   // ParseObjCStringLiteral - Parse Objective-C string literals.
   virtual ExprResult ParseObjCStringLiteral(SourceLocation *AtLocs, 
                                             ExprTy **Strings,