Disallow indexed reference types in events when using ABIEncoderV2

test/libsolidity/syntaxTests/events/event_array_indexed_v2.sol

@@ -0,0 +1,7 @@
+pragma experimental ABIEncoderV2;
+contract c {
+    event E(uint[] indexed);
+}
+// ----
+// Warning: (0-33): Experimental features are turned on. Do not use experimental features on live deployments.
+// TypeError: (59-65): Reference types cannot be indexed.

test/libsolidity/syntaxTests/events/event_array_v2.sol

@@ -0,0 +1,6 @@
+pragma experimental ABIEncoderV2;
+contract c {
+    event E(uint[]);
+}
+// ----
+// Warning: (0-33): Experimental features are turned on. Do not use experimental features on live deployments.

test/libsolidity/syntaxTests/events/event_nested_array_indexed_v2.sol

@@ -0,0 +1,7 @@
+pragma experimental ABIEncoderV2;
+contract c {
+    event E(uint[][] indexed);
+}
+// ----
+// Warning: (0-33): Experimental features are turned on. Do not use experimental features on live deployments.
+// TypeError: (59-67): Reference types cannot be indexed.

test/libsolidity/syntaxTests/events/event_nested_array_v2.sol

@@ -0,0 +1,6 @@
+pragma experimental ABIEncoderV2;
+contract c {
+    event E(uint[][]);
+}
+// ----
+// Warning: (0-33): Experimental features are turned on. Do not use experimental features on live deployments.

test/libsolidity/syntaxTests/events/event_struct_indexed_v2.sol

@@ -0,0 +1,8 @@
+pragma experimental ABIEncoderV2;
+contract c {
+    struct S { uint a ; }
+    event E(S indexed);
+}
+// ----
+// Warning: (0-33): Experimental features are turned on. Do not use experimental features on live deployments.
+// TypeError: (85-86): Reference types cannot be indexed.

test/libsolidity/syntaxTests/events/event_struct_v2.sol

@@ -0,0 +1,7 @@
+pragma experimental ABIEncoderV2;
+contract c {
+    struct S { uint a ; }
+    event E(S);
+}
+// ----
+// Warning: (0-33): Experimental features are turned on. Do not use experimental features on live deployments.