Tests/Docs after disallowing super, this and _ as declaration names

test/libsolidity/syntaxTests/inlineAssembly/invalid/illegal_names.sol

@@ -0,0 +1,55 @@
+contract C {
+    function f() public {
+        // reserved function names
+        assembly {
+            function this() {
+            }
+            function super() {
+            }
+            function _() {
+            }
+        }
+
+        // reserved names as function argument
+        assembly {
+            function a(this) {
+            }
+            function b(super) {
+            }
+            function c(_) {
+            }
+        }
+
+        // reserved names as function return parameter
+        assembly {
+            function d() -> this {
+            }
+            function g() -> super {
+            }
+            function c() -> _ {
+            }
+        }
+
+        // reserved names as variable declaration
+        assembly {
+            let this := 1
+            let super := 1
+            let _ := 1
+        }
+    }
+}
+// ----
+// DeclarationError 4113: (105-136): The identifier name "this" is reserved.
+// DeclarationError 4113: (149-181): The identifier name "super" is reserved.
+// DeclarationError 4113: (194-222): The identifier name "_" is reserved.
+// DeclarationError 4113: (323-327): The identifier name "this" is reserved.
+// DeclarationError 4113: (368-373): The identifier name "super" is reserved.
+// DeclarationError 4113: (414-415): The identifier name "_" is reserved.
+// DeclarationError 4113: (546-550): The identifier name "this" is reserved.
+// DeclarationError 4113: (595-600): The identifier name "super" is reserved.
+// DeclarationError 4113: (645-646): The identifier name "_" is reserved.
+// DeclarationError 4113: (759-763): The identifier name "this" is reserved.
+// DeclarationError 3859: (759-763): This declaration shadows a declaration outside the inline assembly block.
+// DeclarationError 4113: (785-790): The identifier name "super" is reserved.
+// DeclarationError 3859: (785-790): This declaration shadows a declaration outside the inline assembly block.
+// DeclarationError 4113: (812-813): The identifier name "_" is reserved.