Error on invalid arithmetic with constant expressions.

test/libsolidity/syntaxTests/constants/addmod_mulmod_rational.sol

@@ -0,0 +1,7 @@
+contract C {
+    uint constant a = addmod(3, 4, 0.1);
+    uint constant b = mulmod(3, 4, 0.1);
+}
+// ----
+// TypeError: (48-51): Invalid type for argument in function call. Invalid implicit conversion from rational_const 1 / 10 to uint256 requested.
+// TypeError: (89-92): Invalid type for argument in function call. Invalid implicit conversion from rational_const 1 / 10 to uint256 requested.

test/libsolidity/syntaxTests/constants/addmod_zero.sol

@@ -0,0 +1,11 @@
+contract c {
+    uint constant a1 = 0;
+    uint constant a2 = 1;
+    uint constant b1 = addmod(3, 4, 0);
+    uint constant b2 = addmod(3, 4, a1);
+    uint constant b3 = addmod(3, 4, a2 - 1);
+}
+// ----
+// TypeError: (88-103): Arithmetic modulo zero.
+// TypeError: (128-144): Arithmetic modulo zero.
+// TypeError: (169-189): Arithmetic modulo zero.

test/libsolidity/syntaxTests/constants/division_by_zero.sol

@@ -0,0 +1,9 @@
+contract c {
+    uint constant a1 = 0;
+    uint constant a2 = 1;
+    uint constant b1 = 7 / a1;
+    uint constant b2 = 7 / (a2 - 1);
+}
+// ----
+// TypeError: (88-94): Division by zero.
+// TypeError: (119-131): Division by zero.

test/libsolidity/syntaxTests/constants/mod_div_rational.sol

@@ -0,0 +1,6 @@
+contract C {
+    fixed a1 = 0.1 % -0.4271087646484375;
+    fixed a2 = 0.1 % 0.4271087646484375;
+    fixed a3 = 0 / 0.123;
+    fixed a4 = 0 / -0.123;
+}

test/libsolidity/syntaxTests/constants/mod_zero.sol

@@ -0,0 +1,9 @@
+contract c {
+    uint constant a1 = 0;
+    uint constant a2 = 1;
+    uint constant b1 = 3 % a1;
+    uint constant b2 = 3 % (a2 - 1);
+}
+// ----
+// TypeError: (88-94): Modulo zero.
+// TypeError: (119-131): Modulo zero.

test/libsolidity/syntaxTests/constants/mulmod_zero.sol

@@ -0,0 +1,11 @@
+contract c {
+    uint constant a1 = 0;
+    uint constant a2 = 1;
+    uint constant b1 = mulmod(3, 4, 0);
+    uint constant b2 = mulmod(3, 4, a1);
+    uint constant b3 = mulmod(3, 4, a2 - 1);
+}
+// ----
+// TypeError: (88-103): Arithmetic modulo zero.
+// TypeError: (128-144): Arithmetic modulo zero.
+// TypeError: (169-189): Arithmetic modulo zero.