Callvalue checks for implicit constructors.

test/libsolidity/syntaxTests/constructor/payable_new.sol

@@ -0,0 +1,16 @@
+contract A1 {}
+contract B1 is A1 { constructor() public payable {} }
+
+contract A2 { constructor() public {} }
+contract B2 is A2 { constructor() public payable {} }
+
+contract B3 { constructor() public payable {} }
+
+contract C {
+	function f() public payable {
+		new B1{value: 10}();
+		new B2{value: 10}();
+		new B3{value: 10}();
+	}
+}
+// ----