abi.encodeCall for declarations.

test/libsolidity/semanticTests/abiencodedecode/abi_encode_call_declaration.sol

@@ -0,0 +1,54 @@
+pragma abicoder v2;
+
+contract X {
+    // no "returns" on purpose
+    function a(uint) public pure {}
+    function b(uint) external pure {}
+}
+
+contract Base {
+    function a(uint x) external pure returns (uint) { return x + 1; }
+}
+
+contract C is Base {
+	function test() public view returns (uint r) {
+        bool success;
+        bytes memory result;
+        (success, result) = address(this).staticcall(abi.encodeCall(X.a, 1));
+        require(success && result.length == 32);
+        r += abi.decode(result, (uint));
+        require(r == 2);
+
+        (success, result) = address(this).staticcall(abi.encodeCall(X.b, 10));
+        require(success && result.length == 32);
+        r += abi.decode(result, (uint));
+        require(r == 13);
+
+        (success, result) = address(this).staticcall(abi.encodeCall(Base.a, 100));
+        require(success && result.length == 32);
+        r += abi.decode(result, (uint));
+        require(r == 114);
+
+        (success, result) = address(this).staticcall(abi.encodeCall(this.a, 1000));
+        require(success && result.length == 32);
+        r += abi.decode(result, (uint));
+        require(r == 1115);
+
+        (success, result) = address(this).staticcall(abi.encodeCall(C.b, 10000));
+        require(success && result.length == 32);
+        r += abi.decode(result, (uint));
+        require(r == 11116);
+
+        return r;
+	}
+    function b(uint x) external view returns (uint) {
+        return this.a(x);
+    }
+
+}
+
+// ====
+// compileViaYul: also
+// EVMVersion: >=byzantium
+// ----
+// test() -> 11116