Add tests

Author: matheusaaguiar

test/libsolidity/syntaxTests/enums/enum_name_future_keyword_warning.sol

@@ -0,0 +1,6 @@
+enum error { layout, at }
+/// ----
+// ----
+// Warning 6335: (0-25): "error" will be promoted to keyword in the next breaking version and will not be allowed as an identifier anymore.
+// Warning 6335: (13-19): "layout" will be promoted to keyword in the next breaking version and will not be allowed as an identifier anymore.
+// Warning 6335: (21-23): "at" will be promoted to keyword in the next breaking version and will not be allowed as an identifier anymore.

test/libsolidity/syntaxTests/imports/import_alias_name_future_keyword_warning.sol

@@ -0,0 +1,8 @@
+==== Source: a ====
+contract A {}
+==== Source: b ====
+import {A as super} from "a";
+contract C is super {}
+// ----
+// DeclarationError 3726: (b:13-18): The name "super" is reserved.
+// Warning 2319: (b:13-18): This declaration shadows a builtin symbol.

test/libsolidity/syntaxTests/imports/import_name_future_keyword_warning.sol

@@ -0,0 +1,11 @@
+==== Source: a ====
+uint constant CONST = 10;
+==== Source: b ====
+import "a" as super;
+contract C {
+    uint x = super.CONST;
+}
+// ----
+// DeclarationError 3726: (b:0-20): The name "super" is reserved.
+// Warning 6335: (b:0-20): "super" will be promoted to keyword in the next breaking version and will not be allowed as an identifier anymore.
+// Warning 2319: (b:0-20): This declaration shadows a builtin symbol.

test/libsolidity/syntaxTests/inlineAssembly/function_name_future_keyword_warning.sol

@@ -0,0 +1,9 @@
+contract C {
+  function f() pure public {
+    assembly {
+      function error (a, b  , c ) ->    y,x,z {
+      }
+    }
+  }
+}
+// ----

test/libsolidity/syntaxTests/inlineAssembly/variable_name_future_keyword_warning.sol

@@ -0,0 +1,6 @@
+function f() pure {
+    assembly {
+        let layout := 1
+    }
+}
+// ----

test/libsolidity/syntaxTests/structs/struct_name_future_keyword_warning.sol

@@ -0,0 +1,6 @@
+struct error {
+    uint layout;
+}
+// ----
+// Warning 6335: (0-33): "error" will be promoted to keyword in the next breaking version and will not be allowed as an identifier anymore.
+// Warning 6335: (19-30): "layout" will be promoted to keyword in the next breaking version and will not be allowed as an identifier anymore.

test/libsolidity/syntaxTests/userDefinedValueType/udvt_name_future_keyword_warning.sol

@@ -0,0 +1,3 @@
+type error is int;
+// ----
+// Warning 6335: (0-18): "error" will be promoted to keyword in the next breaking version and will not be allowed as an identifier anymore.

test/libsolidity/syntaxTests/variableDeclaration/variable_named_leave.sol

@@ -0,0 +1,4 @@
+contract C {
+    uint leave = 1;
+}
+// ----