Merge pull request #8994 from ethereum/fixInvertedBinaryOp

Fix type inversion for shift and exp operators.

test/libsolidity/syntaxTests/nameAndTypeResolution/113_exp_warn_literal_base_1.sol

@@ -5,4 +5,3 @@ contract test {
     }
 }
 // ----
-// Warning: (99-104): Result of exponentiation has type uint8 and thus might overflow. Silence this warning by converting the literal to the expected type.

test/libsolidity/syntaxTests/nameAndTypeResolution/116_shift_warn_literal_base_1.sol

@@ -5,4 +5,3 @@ contract test {
     }
 }
 // ----
-// Warning: (99-106): Result of shift has type uint8 and thus might overflow. Silence this warning by converting the literal to the expected type.

test/libsolidity/syntaxTests/nameAndTypeResolution/333_fixed_point_casting_exponents_15.sol

@@ -4,4 +4,4 @@ contract test {
     }
 }
 // ----
-// TypeError: (61-77): Operator ** not compatible with types int_const 3 and ufixed128x18
+// TypeError: (61-77): Operator ** not compatible with types int_const 3 and ufixed128x18. Exponent is fractional.

test/libsolidity/syntaxTests/nameAndTypeResolution/334_fixed_point_casting_exponents_neg.sol

@@ -4,4 +4,4 @@ contract test {
     }
 }
 // ----
-// TypeError: (61-78): Operator ** not compatible with types int_const 42 and fixed128x18
+// TypeError: (61-78): Operator ** not compatible with types int_const 42 and fixed128x18. Exponent is fractional.

test/libsolidity/syntaxTests/nameAndTypeResolution/shift_warn_literal_large_shift_amount.sol

@@ -0,0 +1,7 @@
+contract test {
+    function f() pure public returns(uint) {
+        uint x = 100;
+        return 10 << x;
+    }
+}
+// ----

test/libsolidity/syntaxTests/signed_rational_modulus.sol

@@ -7,4 +7,4 @@ contract test {
     }
 }
 // ----
-// UnimplementedFeatureError: Not yet implemented - FixedPointType.
+// TypeError: (117-123): Operator % not compatible with types rational_const 1 / 2 and fixed128x18. Fractional literals not supported.