Update tests.

test/libsolidity/syntaxTests/tupleAssignments/err_fill_assignment.sol

@@ -0,0 +1,11 @@
+contract C {
+	function f() public pure returns (uint, uint, bytes32) {
+		uint a;
+		bytes32 b;
+		(a,) = f();
+		(,b) = f();
+	}
+}
+// ----
+// TypeError: (103-106): Type tuple(uint256,uint256,bytes32) is not implicitly convertible to expected type tuple(uint256,).
+// TypeError: (117-120): Type tuple(uint256,uint256,bytes32) is not implicitly convertible to expected type tuple(,bytes32).

test/libsolidity/syntaxTests/tupleAssignments/err_multiple_storage_storage_copies_fill_left.sol

@@ -6,5 +6,5 @@ contract C {
 	}
 }
 // ----
+// TypeError: (89-101): Type tuple(int_const 1,int_const 2,struct C.S storage ref,struct C.S storage ref) is not implicitly convertible to expected type tuple(,struct C.S storage ref,struct C.S storage ref).
 // Warning: (79-101): This assignment performs two copies to storage. Since storage copies do not first copy to a temporary location, one of them might be overwritten before the second is executed and thus may have unexpected effects. It is safer to perform the copies separately or assign to storage pointers first.
-// Warning: (79-101): Different number of components on the left hand side (3) than on the right hand side (4).

test/libsolidity/syntaxTests/tupleAssignments/err_multiple_storage_storage_copies_fill_right.sol

@@ -6,5 +6,5 @@ contract C {
 	}
 }
 // ----
+// TypeError: (90-102): Type tuple(struct C.S storage ref,struct C.S storage ref,int_const 1,int_const 2) is not implicitly convertible to expected type tuple(struct C.S storage ref,struct C.S storage ref,).
 // Warning: (79-102): This assignment performs two copies to storage. Since storage copies do not first copy to a temporary location, one of them might be overwritten before the second is executed and thus may have unexpected effects. It is safer to perform the copies separately or assign to storage pointers first.
-// Warning: (79-102): Different number of components on the left hand side (3) than on the right hand side (4).

test/libsolidity/syntaxTests/tupleAssignments/error_fill.sol

@@ -8,5 +8,5 @@ contract C {
 	}
 }
 // ----
-// TypeError: (126-136): Different number of components on the left hand side (2) than on the right hand side (3).
-// TypeError: (140-150): Different number of components on the left hand side (2) than on the right hand side (3).
+// TypeError: (133-136): Type tuple(uint256,uint256,bytes32) is not implicitly convertible to expected type tuple(uint256,).
+// TypeError: (147-150): Type tuple(uint256,uint256,bytes32) is not implicitly convertible to expected type tuple(,bytes32).

test/libsolidity/syntaxTests/tupleAssignments/nowarn_explicit_singleton_token_expression.sol

@@ -1,8 +0,0 @@
-contract C {
-	function f() public pure {
-		uint a;
-		(a,) = (uint(1),);
-	}
-}
-// ----
-// Warning: (53-70): Different number of components on the left hand side (2) than on the right hand side (1).

test/libsolidity/syntaxTests/tupleAssignments/warn_fill_assignment.sol

@@ -1,11 +0,0 @@
-contract C {
-	function f() public pure returns (uint, uint, bytes32) {
-		uint a;
-		bytes32 b;
-		(a,) = f();
-		(,b) = f();
-	}
-}
-// ----
-// Warning: (96-106): Different number of components on the left hand side (2) than on the right hand side (3).
-// Warning: (110-120): Different number of components on the left hand side (2) than on the right hand side (3).