Adding JSDoc for Blockly event fields (#1385)
Adding JSDoc for Blockly event fields (#1385)

Adding JSDoc for blockId, varId, workspaceId, group, and recordUndo
jstnhuang/blockly,joshlory/blockly,twodee/blockly,twodee/blockly,jstnhuang/blockly,mark-friedman/blockly,nickmain/blockly,google/blockly,nickmain/blockly,trinketapp/blockly,twodee/blockly,google/blockly,jstnhuang/blockly,joshlory/blockly,trinketapp/blockly,google/blockly,trinketapp/blockly,mark-friedman/blockly,rachel-fenichel/blockly,google/blockly,rachel-fenichel/blockly,mark-friedman/blockly,picklesrus/blockly,rachel-fenichel/blockly,picklesrus/blockly,groklearning/blockly,nickmain/blockly,twodee/blockly,rachel-fenichel/blockly,trodi/blockly,twodee/blockly,joshlory/blockly,picklesrus/blockly,twodee/blockly,jstnhuang/blockly,groklearning/blockly,google/blockly,google/blockly,nickmain/blockly,trodi/blockly,nickmain/blockly,mark-friedman/blockly,groklearning/blockly,trodi/blockly,mark-friedman/blockly,groklearning/blockly,google/blockly,nickmain/blockly,mark-friedman/blockly,rachel-fenichel/blockly,rachel-fenichel/blockly,trinketapp/blockly,rachel-fenichel/blockly,trodi/blockly