took out "crossproduct" primitive option from the palette

HISTORY.md

@@ -17,6 +17,7 @@
 * threads: enhanced list attributes 'rank', 'shape' and 'ravel' to also handle scalars
 * threads: enhanced 'reshape' to also handle scalars
 * lists: limit crash-dangerous matrix-exploding ops to 1 MM elements (reshape, crossproduct)
+* objects, threads: took out "crossproduct" primitive option from the palette
 
 ### 2021-02-08
 * lists, objects, threads: new RESHAPE primitive

src/objects.js

@@ -1385,13 +1385,15 @@ SpriteMorph.prototype.initBlocks = function () {
             spec: 'numbers from %n to %n',
             defaults: [1, 10]
         },
-        reportListCombination: {
+    /*
+        reportListCombination: { // currently not in use
             type: 'reporter',
             category: 'lists',
             spec: '%mlfunc %lists',
             defaults: [['append']]
         },
-        reportConcatenatedLists: { // deprecated
+    */
+        reportConcatenatedLists: {
             type: 'reporter',
             category: 'lists',
             spec: 'append %lists'
@@ -1607,11 +1609,6 @@ SpriteMorph.prototype.initBlockMigrations = function () {
             selector: 'reportListAttribute',
             inputs: [['length']],
             offset: 1
-        },
-        reportConcatenatedLists: {
-            selector: 'reportListCombination',
-            inputs: [['append']],
-            offset: 1
         }
     };
 };
@@ -2794,7 +2791,7 @@ SpriteMorph.prototype.blockTemplates = function (category) {
         blocks.push('-');
         blocks.push(block('doForEach'));
         blocks.push('-');
-        blocks.push(block('reportListCombination'));
+        blocks.push(block('reportConcatenatedLists'));
         blocks.push(block('reportReshape'));
         blocks.push('-');
         blocks.push(block('doAddToList'));
@@ -2971,7 +2968,7 @@ SpriteMorph.prototype.freshPalette = function (category) {
                         'reportCDR',
                         'reportListAttribute',
                         'reportListIndex',
-                        'reportListCombination',
+                        'reportConcatenatedLists',
                         'reportReshape',
                         'reportListContainsItem',
                         'reportListIsEmpty',
@@ -8955,7 +8952,7 @@ StageMorph.prototype.blockTemplates = function (category) {
         blocks.push('-');
         blocks.push(block('doForEach'));
         blocks.push('-');
-        blocks.push(block('reportListCombination'));
+        blocks.push(block('reportConcatenatedLists'));
         blocks.push(block('reportReshape'));
         blocks.push('-');
         blocks.push(block('doAddToList'));

src/threads.js

@@ -2086,6 +2086,7 @@ Process.prototype.reportBasicNumbers = function (start, end) {
 };
 
 Process.prototype.reportListCombination = function (choice, lists) {
+    // experimental, currently not in use
     var option = this.inputOption(choice);
     switch (option) {
     case 'append':