Rework isSameAs functions to use concept.isExactly.

The prior Object.equals function was not very descriptive while having the same
effect.

Author: HeikoBecker

code/languages/org.iets3.opensource/languages/org.iets3.core.expr.collections/models/behavior.mps

@@ -197,6 +197,9 @@
       <concept id="1176544042499" name="jetbrains.mps.lang.typesystem.structure.Node_TypeOperation" flags="nn" index="3JvlWi" />
     </language>
     <language id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel">
+      <concept id="1204834851141" name="jetbrains.mps.lang.smodel.structure.PoundExpression" flags="ng" index="25Kdxt">
+        <child id="1204834868751" name="expression" index="25KhWn" />
+      </concept>
       <concept id="1177026924588" name="jetbrains.mps.lang.smodel.structure.RefConcept_Reference" flags="nn" index="chp4Y">
         <reference id="1177026940964" name="conceptDeclaration" index="cht4Q" />
       </concept>
@@ -1419,20 +1422,6 @@
         </node>
         <node concept="3clFbF" id="5L2mTKm_vU3" role="3cqZAp">
           <node concept="1Wc70l" id="5L2mTKm_y6d" role="3clFbG">
-            <node concept="2YIFZM" id="5E_O2NLXyie" role="3uHU7w">
-              <ref role="37wK5l" to="33ny:~Objects.equals(java.lang.Object,java.lang.Object)" resolve="equals" />
-              <ref role="1Pybhc" to="33ny:~Objects" resolve="Objects" />
-              <node concept="2OqwBi" id="5E_O2NLXy_i" role="37wK5m">
-                <node concept="13iPFW" id="5E_O2NLXyp8" role="2Oq$k0" />
-                <node concept="2yIwOk" id="5E_O2NLXz8x" role="2OqNvi" />
-              </node>
-              <node concept="2OqwBi" id="5L2mTKm_KSC" role="37wK5m">
-                <node concept="37vLTw" id="5L2mTKm_KDr" role="2Oq$k0">
-                  <ref role="3cqZAo" node="5L2mTKm_vHh" resolve="casted" />
-                </node>
-                <node concept="2yIwOk" id="5L2mTKm_Loi" role="2OqNvi" />
-              </node>
-            </node>
             <node concept="2OqwBi" id="5L2mTKm_wGj" role="3uHU7B">
               <node concept="2OqwBi" id="5L2mTKm_w6k" role="2Oq$k0">
                 <node concept="13iPFW" id="5L2mTKm_x7x" role="2Oq$k0" />
@@ -1452,6 +1441,22 @@
                 </node>
               </node>
             </node>
+            <node concept="2OqwBi" id="4PaWMNg$fqb" role="3uHU7w">
+              <node concept="2OqwBi" id="4PaWMNg$eA7" role="2Oq$k0">
+                <node concept="13iPFW" id="4PaWMNg$ecv" role="2Oq$k0" />
+                <node concept="2yIwOk" id="4PaWMNg$f4q" role="2OqNvi" />
+              </node>
+              <node concept="3O6GUB" id="4PaWMNg$g0h" role="2OqNvi">
+                <node concept="25Kdxt" id="4PaWMNg$gib" role="3QVz_e">
+                  <node concept="2OqwBi" id="4PaWMNg$h2P" role="25KhWn">
+                    <node concept="37vLTw" id="4PaWMNg$g$6" role="2Oq$k0">
+                      <ref role="3cqZAo" node="5L2mTKm_vHh" resolve="casted" />
+                    </node>
+                    <node concept="2yIwOk" id="4PaWMNg$hxU" role="2OqNvi" />
+                  </node>
+                </node>
+              </node>
+            </node>
           </node>
         </node>
       </node>
@@ -4695,19 +4700,21 @@
           </node>
         </node>
         <node concept="3clFbF" id="6iWyECL0XoQ" role="3cqZAp">
-          <node concept="1Wc70l" id="6iWyECL15ZG" role="3clFbG">
-            <node concept="2YIFZM" id="6iWyECL16vw" role="3uHU7w">
-              <ref role="37wK5l" to="33ny:~Objects.equals(java.lang.Object,java.lang.Object)" resolve="equals" />
-              <ref role="1Pybhc" to="33ny:~Objects" resolve="Objects" />
-              <node concept="2OqwBi" id="6iWyECL174_" role="37wK5m">
-                <node concept="13iPFW" id="6iWyECL16Iq" role="2Oq$k0" />
-                <node concept="2yIwOk" id="6iWyECL17yH" role="2OqNvi" />
-              </node>
-              <node concept="2OqwBi" id="6iWyECL18m5" role="37wK5m">
-                <node concept="37vLTw" id="6iWyECL180d" role="2Oq$k0">
-                  <ref role="3cqZAo" node="6iWyECL0FjB" resolve="other" />
-                </node>
-                <node concept="2yIwOk" id="6iWyECL18MM" role="2OqNvi" />
+          <node concept="1Wc70l" id="4PaWMNg$8Rk" role="3clFbG">
+            <node concept="2OqwBi" id="4PaWMNg$a27" role="3uHU7w">
+              <node concept="2OqwBi" id="4PaWMNg$9jX" role="2Oq$k0">
+                <node concept="13iPFW" id="4PaWMNg$93m" role="2Oq$k0" />
+                <node concept="2yIwOk" id="4PaWMNg$9GV" role="2OqNvi" />
+              </node>
+              <node concept="3O6GUB" id="4PaWMNg$aAp" role="2OqNvi">
+                <node concept="25Kdxt" id="4PaWMNg$aRz" role="3QVz_e">
+                  <node concept="2OqwBi" id="4PaWMNg$blE" role="25KhWn">
+                    <node concept="37vLTw" id="4PaWMNg$b8I" role="2Oq$k0">
+                      <ref role="3cqZAo" node="6iWyECL0FjB" resolve="other" />
+                    </node>
+                    <node concept="2yIwOk" id="4PaWMNg$bMG" role="2OqNvi" />
+                  </node>
+                </node>
               </node>
             </node>
             <node concept="1Wc70l" id="6iWyECL11pN" role="3uHU7B">