[SMTChecker] Added support for public getters through this.

test/libsolidity/smtCheckerTests/functions/getters/bytes.sol

@@ -0,0 +1,13 @@
+pragma experimental SMTChecker;
+
+contract C {
+	bytes public str2 = 'c';
+
+	function f() public view {
+		bytes memory a2 = this.str2();
+		assert(keccak256(a2) == keccak256(str2)); // should hold
+		assert(keccak256(a2) == keccak256('a')); // should fail
+	}
+}
+// ----
+// Warning 6328: (195-234): CHC: Assertion violation happens here.