Merge branch 'master' into fix15857

Author: rbuckton

src/compiler/checker.ts

@@ -3966,7 +3966,7 @@ namespace ts {
             return bindingElement.right;
         }
 
-        if (isSpreadExpression(bindingElement)) {
+        if (isSpreadElement(bindingElement)) {
             // Recovery consistent with existing emit.
             return getInitializerOfBindingOrAssignmentElement(<BindingOrAssignmentElement>bindingElement.expression);
         }
@@ -4034,7 +4034,7 @@ namespace ts {
             return getTargetOfBindingOrAssignmentElement(<BindingOrAssignmentElement>bindingElement.left);
         }
 
-        if (isSpreadExpression(bindingElement)) {
+        if (isSpreadElement(bindingElement)) {
             // `a` in `[...a] = ...`
             return getTargetOfBindingOrAssignmentElement(<BindingOrAssignmentElement>bindingElement.expression);
         }

src/compiler/factory.ts

@@ -3610,7 +3610,7 @@ namespace ts {
             else {
                 if (segments.length === 1) {
                     const firstElement = elements[0];
-                    return needsUniqueCopy && isSpreadExpression(firstElement) && firstElement.expression.kind !== SyntaxKind.ArrayLiteralExpression
+                    return needsUniqueCopy && isSpreadElement(firstElement) && firstElement.expression.kind !== SyntaxKind.ArrayLiteralExpression
                         ? createArraySlice(segments[0])
                         : segments[0];
                 }
@@ -3621,7 +3621,7 @@ namespace ts {
         }
 
         function partitionSpread(node: Expression) {
-            return isSpreadExpression(node)
+            return isSpreadElement(node)
                 ? visitSpanOfSpreads
                 : visitSpanOfNonSpreads;
         }

src/compiler/transformers/es2015.ts

@@ -1502,7 +1502,7 @@ namespace ts {
             if (isAssignmentExpression(node, /*excludeCompoundAssignment*/ true)) {
                 return hasExportedReferenceInDestructuringTarget(node.left);
             }
-            else if (isSpreadExpression(node)) {
+            else if (isSpreadElement(node)) {
                 return hasExportedReferenceInDestructuringTarget(node.expression);
             }
             else if (isObjectLiteralExpression(node)) {