Fix local variable declaration issues after function argument initialization. (#3304)

Fixes #3298
Fixes #3299
Fixes #3300
Fixes #3302

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com

tests/jerry/fail/regresssion-test-issue-3299.js

@@ -0,0 +1,27 @@
+// Copyright JS Foundation and other contributors, http://js.foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+function f (a, b = $+ function ( ) { } ( ), $) { }
+var $ = { $: function ($) { }}
+f( )
+
+function duplicatedArg ( a , b = d , c ) {
+  try {
+    var eval
+    var id_1
+    if ( id_2 === eval ( ) ) { }
+  } finally { }
+}
+
+duplicatedArg(1, 2)

tests/jerry/fail/regresssion-test-issue-3300.js

@@ -0,0 +1,23 @@
+// Copyright JS Foundation and other contributors, http://js.foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+y = 6
+function i ( a , b = ( y ) + 2 , c = typeof id_0 ) {
+  function x ( ) { }
+    eval ( "//Single Line Comments\u2029 var =;" )
+   c === "undefined"
+   print ( y === 10 )
+   ( id_2 === 11 )
+}
+i ( )