Add tests for weirdly sized types

e.g. bytes00001

test/libsolidity/syntaxTests/types/weird_sized_types.sol

@@ -0,0 +1,43 @@
+contract C {
+    uint bytes01 = 0;
+    uint bytes000000001 = 0;
+    uint bytes000099000 = 0;
+    uint bytes0a = 0;
+
+    uint int0 = 0;
+    uint int01 = 0;
+    uint int000000001 = 0;
+    uint int000099000 = 0;
+    uint int0a = 0;
+
+    uint uint0 = 0;
+    uint uint01 = 0;
+    uint uint000000001 = 0;
+    uint uint000099000 = 0;
+    uint uint0a = 0;
+
+    uint fixed0x0 = 0;
+    uint fixed01x1 = 0;
+    uint fixed1x01 = 0;
+    uint fixed000000001x1 = 0;
+    uint fixed1x000000001 = 0;
+    uint fixed000099000x1 = 0;
+    uint fixed1x000099000 = 0;
+    uint fixed0ax1 = 0;
+    uint fixed1x0a = 0;
+
+    uint ufixed0x0 = 0;
+    uint ufixed01x1 = 0;
+    uint ufixed1x01 = 0;
+    uint ufixed000000001x1 = 0;
+    uint ufixed1x000000001 = 0;
+    uint ufixed000099000x1 = 0;
+    uint ufixed1x000099000 = 0;
+    uint ufixed0ax1 = 0;
+    uint ufixed1x0a = 0;
+
+    // overflow check
+    uint uint300 = 0;
+}
+// ----
+// ParserError 2314: (22-29): Expected identifier but got 'bytes1'