Move ParseUnaryExpression into ParserBase and add tests.

test/cctest/test-parsing.cc

Index: test/cctest/test-parsing.cc
diff --git a/test/cctest/test-parsing.cc b/test/cctest/test-parsing.cc
index 5a2ee1303852b9ab440351b8f16b9f67fdec81db..c88b2dc4464193b2cd4eee714f35df26dd50af3b 100644
--- a/test/cctest/test-parsing.cc
+++ b/test/cctest/test-parsing.cc
@@ -2472,3 +2472,57 @@ TEST(TooManyArguments) {
   static const ParserFlag empty_flags[] = {kAllowLazy};
   RunParserSyncTest(context_data, statement_data, kError, empty_flags, 1);
 }
+
+
+TEST(StrictDelete) {
+  // "delete <Identifier>" is not allowed in strict mode.
+  const char* strict_context_data[][2] = {
+    {"\"use strict\"; ", ""},
+    { NULL, NULL }
+  };
+
+  const char* sloppy_context_data[][2] = {
+    {"", ""},
+    { NULL, NULL }
+  };
+
+  // These are errors in the strict mode.
+  const char* sloppy_statement_data[] = {
+    "delete foo;",
+    "delete foo + 1;",
+    "delete (foo);",
+    "delete eval;",
+    "delete interface;",
+    NULL
+  };
+
+  // These are always OK
+  const char* good_statement_data[] = {
+    "delete this;",
+    "delete 1;",
+    "delete 1 + 2;",
+    "delete foo();",
+    "delete foo.bar;",
+    "delete foo[bar];",
+    "delete foo--;",
+    "delete --foo;",
+    "delete new foo();",
+    "delete new foo(bar);",
+    NULL
+  };
+
+  // These are always errors
+  const char* bad_statement_data[] = {
+    "delete if;",
+    NULL
+  };
+
+  RunParserSyncTest(strict_context_data, sloppy_statement_data, kError);
+  RunParserSyncTest(sloppy_context_data, sloppy_statement_data, kSuccess);
+
+  RunParserSyncTest(strict_context_data, good_statement_data, kSuccess);
+  RunParserSyncTest(sloppy_context_data, good_statement_data, kSuccess);
+
+  RunParserSyncTest(strict_context_data, bad_statement_data, kError);
+  RunParserSyncTest(sloppy_context_data, bad_statement_data, kError);
+}