Add and update tests

Author: matheusaaguiar

test/libsolidity/syntaxTests/array/length/constant_member_access.sol

@@ -0,0 +1,9 @@
+contract A {
+    uint constant LENGTH = 42;
+    uint[A.LENGTH] y;
+}
+
+contract C is A {
+    uint[A.LENGTH] z;
+}
+// ----

test/libsolidity/syntaxTests/constants/constant_variables_as_static_array_length.sol

@@ -7,23 +7,20 @@ library L1 {
 contract C1 {
     uint256 internal constant CONST1 = L1.INT;
 
-    uint256[L1.INT] internal arr1; // error, backward reference
+    uint256[L1.INT] internal arr1;
     uint256[L2.INT] internal arr2; // error, forward reference
 }
 
 contract C2 is C1 {
     uint256 internal constant CONST2 = CONST1;
 
-    uint256[CONST1] internal arr3; // error, inherited constants
-    uint256[CONST2] internal arr4; // error, same contract constant
+    uint256[CONST1] internal arr3;
+    uint256[CONST2] internal arr4;
 }
 
 library L2 {
     uint256 internal constant INT = 100;
 }
 
 // ----
-// TypeError 5462: (158-164): Invalid array length, expected integer literal or constant expression.
 // TypeError 5462: (222-228): Invalid array length, expected integer literal or constant expression.
-// TypeError 5462: (356-362): Invalid array length, expected integer literal or constant expression.
-// TypeError 5462: (421-427): Invalid array length, expected integer literal or constant expression.

test/libsolidity/syntaxTests/constants/constant_with_dependencies_as_array_sizes.sol

@@ -5,12 +5,14 @@ library L1 {
 }
 
 contract C1 {
-    uint256 internal constant CONST = 20 + L2.INT; // forward reference
+    uint256 internal constant CONST = 30 + L1.INT; // backward reference
+    uint256 internal constant CONST2 = 30 + L2.INT; // forward reference
     uint256 internal constant LIMIT = MAX * L1.INT;  // same file & external library constant
     uint256 internal constant NESTED = LIMIT + CONST; // nested & same contract constant
 
-    uint256[L1.INT] internal arr1; // error, backward reference
+    uint256[L1.INT] internal arr1; // ok, backward reference
     uint256[L2.INT] internal arr2; // error, forward reference
+    uint256[CONST2] internal arr3; // error, computed with forward reference
 }
 
 contract C2 is C1 {
@@ -20,16 +22,14 @@ contract C2 is C1 {
 contract C3 is C2 {
     uint256 internal constant NESTED_INHERITED = INHERITED + NESTED + CONST * LIMIT; // nest-inherited constants
 
-    uint256[CONST] internal arr3;            // error, nest-inherited constants
-    uint256[NESTED_INHERITED] internal arr4; // error, same contract constant
+    uint256[CONST] internal arr4;            // nest-inherited constants
+    uint256[NESTED_INHERITED] internal arr5; // same contract constant
 }
 
 library L2 {
     uint256 internal constant INT = 100;
 }
 
 // ----
-// TypeError 5462: (366-372): Invalid array length, expected integer literal or constant expression.
-// TypeError 5462: (430-436): Invalid array length, expected integer literal or constant expression.
-// TypeError 5462: (742-747): Invalid array length, expected integer literal or constant expression.
-// TypeError 5462: (822-838): Invalid array length, expected integer literal or constant expression.
+// TypeError 5462: (501-507): Invalid array length, expected integer literal or constant expression.
+// TypeError 5462: (564-570): Invalid array length, expected integer literal or constant expression.