Merge pull request #11454 from ethereum/data-location-error

Error message: try-catch parameter cannot be in storage.

libsolidity/ast/AST.cpp

@@ -696,8 +696,7 @@ set<VariableDeclaration::Location> VariableDeclaration::allowedDataLocations() c
 		if (
 			isConstructorParameter() ||
 			isInternalCallableParameter() ||
-			isLibraryFunctionParameter() ||
-			isTryCatchParameter()
+			isLibraryFunctionParameter()
 		)
 			locations.insert(Location::Storage);
 		if (!isTryCatchParameter() && !isConstructorParameter())

test/libsolidity/syntaxTests/tryCatch/data_location_error_message.sol

@@ -0,0 +1,11 @@
+contract Foo {
+    function test() public {
+        try this.f() {}
+        catch Error(string reason) {}
+    }
+
+    function f() public {
+    }
+}
+// ----
+// TypeError 6651: (88-101): Data location must be "memory" for parameter in function, but none was given.