Emit [...a] as a.slice() to ensure a is copied
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300cb8d9f2
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@ -1366,7 +1366,7 @@ var __param = (this && this.__param) || function (paramIndex, decorator) {
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return true;
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}
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function emitListWithSpread(elements: Expression[], multiLine: boolean, trailingComma: boolean) {
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function emitListWithSpread(elements: Expression[], alwaysCopy: boolean, multiLine: boolean, trailingComma: boolean) {
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let pos = 0;
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let group = 0;
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let length = elements.length;
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@ -1383,6 +1383,9 @@ var __param = (this && this.__param) || function (paramIndex, decorator) {
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e = (<SpreadElementExpression>e).expression;
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emitParenthesizedIf(e, /*parenthesized*/ group === 0 && needsParenthesisForPropertyAccessOrInvocation(e));
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pos++;
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if (pos === length && group === 0 && alwaysCopy) {
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write(".slice()");
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}
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}
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else {
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let i = pos;
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@ -1422,7 +1425,7 @@ var __param = (this && this.__param) || function (paramIndex, decorator) {
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write("]");
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}
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else {
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emitListWithSpread(elements, /*multiLine*/(node.flags & NodeFlags.MultiLine) !== 0,
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emitListWithSpread(elements, /*alwaysCopy*/ true, /*multiLine*/(node.flags & NodeFlags.MultiLine) !== 0,
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/*trailingComma*/ elements.hasTrailingComma);
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}
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}
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@ -1847,7 +1850,7 @@ var __param = (this && this.__param) || function (paramIndex, decorator) {
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write("void 0");
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}
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write(", ");
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emitListWithSpread(node.arguments, /*multiLine*/ false, /*trailingComma*/ false);
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emitListWithSpread(node.arguments, /*alwaysCopy*/ false, /*multiLine*/ false, /*trailingComma*/ false);
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write(")");
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}
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