[SMTChecker] Support type(I).interfaceId

test/libsolidity/smtCheckerTests/types/type_interfaceid.sol

@@ -0,0 +1,32 @@
+pragma experimental SMTChecker;
+
+interface I1 {
+}
+
+interface I2 {
+	function f() external;
+}
+
+interface I3 {
+	function f() external;
+	function g(uint, address) external;
+}
+
+contract C {
+	function f() public pure {
+		assert(type(I1).interfaceId == 0);
+		assert(type(I2).interfaceId != 0);
+		assert(type(I2).interfaceId == 0x26121ff0);
+		assert(type(I2).interfaceId != 0);
+		assert(type(I3).interfaceId == 0x822b51c6);
+	}
+	function g() public pure {
+		assert(type(I1).interfaceId == type(I2).interfaceId);
+	}
+	function h() public pure {
+		assert(type(I2).interfaceId == type(I3).interfaceId);
+	}
+}
+// ----
+// Warning 6328: (449-501): Assertion violation happens here.
+// Warning 6328: (536-588): Assertion violation happens here.